1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
quester [9]
3 years ago
12

Pls helpppppppppppppp

Mathematics
1 answer:
OLEGan [10]3 years ago
7 0

Answer/Step-by-step explanation:

The following steps to solve equation given by join are shown below including the property of numbers applied for each reasons:

4(2a + 3) = -3(a - 1) + 31 - 11a ----› Given

Apply the distributive property to open the parentheses

4*2a + 4*3 = -3*a -3*-1 + 31 - 11a

8a + 12 = -3a + 3 + 31 - 11a ----› Distributive property

Combine like terms together

8a + 12 = 3 + 31 -3a - 11a

8a + 12 = 34 - 14a ---› Combining like terms

Add 14a to both sides

8a + 12 + 14a = 34 - 14a + 14a

22a + 12 = 34 ----› Addition property

Subtract 12 from both sides

22a + 12 - 12 = 34 - 12

22a = 22 ----› subtraction property of equality

Divide both sides by 22

22a/22 = 22/22

a = 1 ----› Division property of Equality

You might be interested in
How many real roots does the function f(x)=x^2-3x+4 have
nadya68 [22]
Since b^2 - 4ac = 9-16 < 0

There is no real root present. 
5 0
3 years ago
Three years hence a father will four times as old as his son will be. Before two years he was seven times as old as his son was.
myrzilka [38]

Answer: The father is 37 years and the son is 7 years

Step-by-step explanation:

Let x represent the present age of the father.

Let y represent the present age of the son.

Three years hence a father will four times as old as his son will be. This means that

x + 3 = 4(y + 3)

x + 3 = 4y + 12

x - 4y = 12 - 3

x - 4y = 9- - - - - - - - - - - - - - - -1

Before two years he was seven times as old as his son was. This means that

(x - 2) = 7(y - 2)

x - 2 = 7y - 14

x - 7y = - 14 + 2

x - 7y = - 12- - - - - - - - - - - - - - -2

Subtracting equation 2 from equation 1, it becomes

3y = 21

y = 21.3 = 7

Substituting y = 7 into equation 1, it becomes

x - 4 × 7 = 9

x - 28 = 9

x = 9 + 28

x = 37

7 0
3 years ago
Read 2 more answers
Two freind whant to share 3 apples so that they have the same amount \
IRINA_888 [86]
Each of the friends would have 1.5 apples since 3 divided by 2 is 1.5
5 0
3 years ago
Substitute the given values into the formula and solve for the unknown variable. If necessary, round to one decimal place
Stells [14]

Answer:

4=H

Step-by-step explanation:

H is unknown

180=4x7x5+2x5xH

180=140+10H

40=10H

4=H

7 0
3 years ago
Whoever answers correctly gets brainliest
ruslelena [56]
Here the answer in the image below as a table

C
D
E

6 0
3 years ago
Other questions:
  • Megan wants to retile her bathroom floor. If the home improvment store sells one square foot of tile for $2.49, how much will it
    10·1 answer
  • Which equation can be solved to find one of the missing side lengths in the triangle?
    12·2 answers
  • For number 42 what's the equation b.h/2 ? What do we do for x
    7·1 answer
  • 3214 divided by 5 step by step will give brainliest
    10·2 answers
  • I WILL GIVE BRAINLEST IF YOU HELP ME PLEASE
    11·2 answers
  • If you can help me ill give u brainliest
    11·2 answers
  • What equation is equal to 8-2x=12? <br> A)2x-8=-12<br> B)2x-8=12<br> C)x-4=6<br> D)2x=20
    8·1 answer
  • An Native American tepee is conical tent. Find the number of skins needed to cover a teepee 10ft in diameter and 12ft high. each
    15·1 answer
  • What is the y-intercept of an equation
    14·2 answers
  • What is the measure of A??
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!