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Alja [10]
3 years ago
10

BRAINLIEST ANSWER Solve for x. 9(x + 1) = 25 + x x = 2 x = 3 x = 4 x = 54

Mathematics
2 answers:
postnew [5]3 years ago
4 0

Answer:

x=2

Step-by-step explanation:

Distribute the 9 on the left side, resulting in

9x+9=25+x

Subtracting 9 and x from both sides gives us

8x=16

Dividing by 8 gets

x=2

beks73 [17]3 years ago
3 0
Solve the following: x – 2= 7

Answer:

Given, x -2 = 7

=> x – 2 + 2= 7 + 2 [Adding 2 both sides]

=> x = 9

Question 2:

Solve of the following: y + 3 = 10

Solution:

Given, y + 3 = 10

=> y + 3 – 3 = 10 – 3 [subtracting 3 on both side]

=> y = 7

Question 3:

Solve the following: 6 = z + 2

Answer:

Given, 6 = 2 + z

=> 6 – 2 = z + 2 – 2 [Subtracting 2 both sides]

=> 4 = z

=> z = 4



Question 4:

Solve the following: 3/7 + x = 17/7

Answer:

Given, 3/7 + x = 17/7

=> 3/7 + x – 3/7 = 17/7 – 3/7 [Subtracting 3/7 on both sides]

=> x = (17 - 3)/7

=> x = 14/7

=> x = 2

Question 5:

Solve the following: 6x = 12

Answer:

Given, 6x = 12

=> 6x/6 = 12/6 [Dividing 6 on both side]

=> x = 2

Question 6:

Solve the following: t/5 = 10

Answer:

Given, t/5 = 10

=> t/5 * 5 = 10 * 5 [Multiply by 5 on both side]

=> t = 50



Question 7:

Solve the following: 2x/3 = 18

Answer:

Given, 2x/3 = 18

=> 2x = 3 * 18

=> 2x = 54

=> x = 54/2

=> x = 27

Question 8:

Solve the following: 1.6 = y/1.5

Answer:

Given, 1.6 = y/1.5

=> y = 1.6 * 1.5

=> y = 2.40

Question 9:

Solve the following: 7x – 9 = 16

Answer:

Given, 7x – 9 = 16

=> 7x = 16 + 9

=> 7x = 25

=> x = 25/7





Question 10:

Solve the following: 14y – 8 = 13

Answer:

Given, 14y – 8 = 13

=> 14y = 13 + 8

=> 14y = 21

=> y = 21/14

=> y = 3/2 [21 and 14 are divided by 7]

Question 11:

Solve the following: 17 + 6p = 9

Answer:

Given, 17 + 6p = 9

=> 6p = 9 – 17

=> 6p = -8

=> p = -8/6

=> p = -4/3 [8 and 6 are divided 2]

Answer = A Linear Equation is an algebraic equation composed of a constant (e.g. x = 3) or a variable to the power of 1 (e.g. 2a + 3 = 13).

Remember that 2a means 2 × a.

Solving an equation is to figure out what number is represented by the variable. For example, in the equation 2a + 3 = 13, the variable a is 5. That’s what I can
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It's the answer If you liked it Plz BRAINLIEST

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The largest side of a triangle is six more units than the smallest side. The third side is twice the smallest side. If the perim
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Equation:     x + x + 6 = 2x = 25
smallest side is    4.75 units
largest size is      4.75 + 6 = 10.75 units
3rd side is           2(4.75)= 9.5 units

smallest side is    x 
largest size is      x + 6
3rd side is           2x
-----------------------------------
                           4x + 6 = 25 
                                  -6     -6
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x = 4.75 is the smallest side


smallest side is    4.75 units
largest size is      4.75 + 6 = 10.75 units
3rd side is           2(4.75)= 9.5 units

7 0
2 years ago
A chemist has three different acid solutions. The first acid solution contains 25 % acid, the second contains 45 % and the third
liq [111]

Answer:

Wyzant

ALGEBRA WORD PROBLEM

Dorian S. asked • 06/28/17

THREE LINEAR EQUATIONS WITH THREE VARIABLES

A chemist has three different acid solutions. The first acid solution contains 15% acid, the second contains 25%,

and the third contains 70%. He wants to use all three solutions to obtain a mixture of 40 liters containing 45%

acid, using 2 times as much of the 70% solution as the 25% solution. How many liters of each solution should be used?

How to set up as three linear equations to find the answer?

Follow2

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More

1 Expert Answer

By:

Best

Arthur D. answered • 06/28/17

TUTOR 4.9 (67)

Forty Year Educator: Classroom, Summer School, Substitute, Tutor

ABOUT THIS TUTOR ›

set up 2 equations

the first equation...

15%*x+25%*y+70%*2y=45%*40

0.15x+0.25y+1.4y=0.45*40

0.15x+1.65y=18

multiply all terms by 100

15x+165y=1800

divide all terms by 15

x+11y=120

the second equation...

x+y+2y=40

x+3y=40

x=40-3y

substitute into the first equation x+11y=120

40-3y+11y=120

40+8y=120

8y=120-40

8y=80

y=80/8

y=10 liters

x+3*10=40

x+30=40

x=40-30

x=10 liters

10 liters of 15%, 10 liters of 25%, and 20 liters of 70%

check:

10*15%=1.5

10*25%=2.5

20*70%=14

1.5+2.5+14=18

18/40=9/20=45/100=45%

45%*40=18

hope it helps

please mark brainliest

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3 years ago
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ch4aika [34]

Answer:

feet

Step-by-step explanation:

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2 years ago
kathy is packing her suitcase for a trip. she wants the total weight of the suitcase to be no more than 50 pounds. the total wei
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D is the correct answer.

We do not need math in this instance, just knowledge.
We know that the answer will point to 0, not infinity. There are constraints. Also note that 1.75*7=12.25, which means you can fit no more than 7 books in the bag.
What best describes this? Answer Choice D
7 0
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