9x-20=7x+7

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Solution for 9x-20=7x+7 equation:


Simplifying
9x + -20 = 7x + 7

Reorder the terms:
-20 + 9x = 7x + 7

Reorder the terms:
-20 + 9x = 7 + 7x

Solving
-20 + 9x = 7 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-20 + 9x + -7x = 7 + 7x + -7x

Combine like terms: 9x + -7x = 2x
-20 + 2x = 7 + 7x + -7x

Combine like terms: 7x + -7x = 0
-20 + 2x = 7 + 0
-20 + 2x = 7

Add '20' to each side of the equation.
-20 + 20 + 2x = 7 + 20

Combine like terms: -20 + 20 = 0
0 + 2x = 7 + 20
2x = 7 + 20

Combine like terms: 7 + 20 = 27
2x = 27

Divide each side by '2'.
x = 13.5

Simplifying
x = 13.5

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