3 years ago

How to find x ?? -x+7=-4x–20

Mathematics

1 answer:

arlik [135]3 years ago

6 0

Answer:

x= -9

Step-by-step explanation:

-x+7= -4x-20

Move the variable to the left side and change its sign.

-x+4x+7=-20

Move constant to the right side and change its sign.

-x=4x= -20-7

Collect the like terms.

3x= -27

Divide both sides of the equation by 3.

x= -9

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