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Marta_Voda [28]
3 years ago
7

If x=3 calculate the value of x3-x

Mathematics
2 answers:
Dmitrij [34]3 years ago
6 0
x^3-x=3^3-3= \\\\ =27-3= \\\\ =\boxed{24}
Nikolay [14]3 years ago
3 0
........................................................3*3-3...................................................................
9-3
6
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Solve equations show all steps 1. 2x-10=44+8x 2. 7x-4=20=3x 3. 2(x-3)=-20 4. 15-4x+5=32
Inga [223]

Answer:

2x - 10 = 44 + 8x

7x - 4 = 20 =3x

2(x-3) = -20

15 - 4x + 5 = 32

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    2*x-10-(44+8*x)=0

Pull out like factors :

  -6x - 54  =   -6 • (x + 9)

  -6   =  0

 Solve  :    x+9 = 0

Subtract  9  from both sides of the equation :

                     x = -9

x = -9

Move all terms containing

x

to the left side of the equation.

4

x

−

4

=

20

Move all terms not containing

x

to the right side of the equation.

4

x

=

24

divide each term by 4

x = 6

2(x−3)=−20

Step 1: Simplify both sides of the equation.

2(x−3)=−20

2x−6=−20

Step 2: Add 6 to both sides.

2x−6+6=−20+6

2x=−14

Step 3: Divide both sides by 2.

2x

2

=

−14

2

x=−7

−4x+20=32

Step 2: Subtract 20 from both sides.

−4x+20−20=32−20

−4x=12

Step 3: Divide both sides by -4.

−4x

−4

=

12

−4

x=−3

4 0
3 years ago
PLS HELP WILL GIVE BRAINLY!!
cricket20 [7]

Answer:

Step-by-step explanation:

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7 0
3 years ago
Estimate the quotient
juin [17]

#5

57.8 can be rounded to 60 because 57.8 is closer to 60 than 50 and 81 is relatively close to 80. if we had to estimate the quotient, we would have

60 ÷ 80 = 0.75

#8

2.8 can be rounded to 3 because 2.8 is closer to 3 than it is to 2 and 6 can be left alone because it will make our division easier.

3 ÷ 6 = 0.5

#11

737.5 can be rounded to 700 and 9 can be rounded to 10.

700 ÷ 10 = 100

4 0
3 years ago
8 4/5 - 2/3 - ___ = 3 1/10
Amiraneli [1.4K]

Answer:

x= 5 1/30

Step-by-step explanation:

hope this is fine :)

8 0
2 years ago
Find the tax amount given the original price and the tax rate. Round to the nearest cent if necessary. Original price: $58.73 Ta
Hoochie [10]
$54.91

6.5% of 58.73.
Then minus that amount from 58.73


Mark brainliest please
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2 years ago
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