7x-7=-x+121

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Solution for 7x-7=-x+121 equation:


Simplifying
7x + -7 = -1x + 121

Reorder the terms:
-7 + 7x = -1x + 121

Reorder the terms:
-7 + 7x = 121 + -1x

Solving
-7 + 7x = 121 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-7 + 7x + x = 121 + -1x + x

Combine like terms: 7x + x = 8x
-7 + 8x = 121 + -1x + x

Combine like terms: -1x + x = 0
-7 + 8x = 121 + 0
-7 + 8x = 121

Add '7' to each side of the equation.
-7 + 7 + 8x = 121 + 7

Combine like terms: -7 + 7 = 0
0 + 8x = 121 + 7
8x = 121 + 7

Combine like terms: 121 + 7 = 128
8x = 128

Divide each side by '8'.
x = 16

Simplifying
x = 16

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