91=7-7x

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Solution for 91=7-7x equation:


Simplifying
91 = 7 + -7x

Solving
91 = 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.
91 + 7x = 7 + -7x + 7x

Combine like terms: -7x + 7x = 0
91 + 7x = 7 + 0
91 + 7x = 7

Add '-91' to each side of the equation.
91 + -91 + 7x = 7 + -91

Combine like terms: 91 + -91 = 0
0 + 7x = 7 + -91
7x = 7 + -91

Combine like terms: 7 + -91 = -84
7x = -84

Divide each side by '7'.
x = -12

Simplifying
x = -12

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