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3 years ago

12. Find x. (x + 20)° (5x - 8)°

Mathematics

1 answer:

ololo11 [35]3 years ago

8 0

Answer:

Step-by-step explanation:

Simplifying

x + 20 = 5x + -8

Reorder the terms:

20 + x = 5x + -8

Reorder the terms:

20 + x = -8 + 5x

Solving

20 + x = -8 + 5x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-5x' to each side of the equation.

20 + x + -5x = -8 + 5x + -5x

Combine like terms: x + -5x = -4x

20 + -4x = -8 + 5x + -5x

Combine like terms: 5x + -5x = 0

20 + -4x = -8 + 0

20 + -4x = -8

Add '-20' to each side of the equation.

20 + -20 + -4x = -8 + -20

Combine like terms: 20 + -20 = 0

0 + -4x = -8 + -20

-4x = -8 + -20

Combine like terms: -8 + -20 = -28

-4x = -28

Divide each side by '-4'.

x = 7

Simplifying

x = 7

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3 years ago

P/-8 + 9 > 13 pls explain i don't get it

KonstantinChe [14]

Answer:

p < -32

Step-by-step explanation:

Given: p/-8 + 9 > 13

Rewrite: $\frac{p}{-8}$ + 9 > 13

Subtract 9 from both sides: $\frac{p}{-8}$ > 4

Move the negative (it is a fraction): $\frac{-p}{8}$ > 4

Multiply both sides by 8: -p > 32

Times by -1 (-p -> -1p): p > -32

Flip the sign (multiplied by a negative): p < -32

Hope this helps, have a nice day :D

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2 years ago

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IgorC [24]

Answer:

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Step-by-step explanation:

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3 years ago

12. Find x. (x + 20)° (5x - 8)°​

12. Find x. (x + 20)° (5x - 8)°