12x-91=-7x-13+13x

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Solution for 12x-91=-7x-13+13x equation:


Simplifying
12x + -91 = -7x + -13 + 13x

Reorder the terms:
-91 + 12x = -7x + -13 + 13x

Reorder the terms:
-91 + 12x = -13 + -7x + 13x

Combine like terms: -7x + 13x = 6x
-91 + 12x = -13 + 6x

Solving
-91 + 12x = -13 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-91 + 12x + -6x = -13 + 6x + -6x

Combine like terms: 12x + -6x = 6x
-91 + 6x = -13 + 6x + -6x

Combine like terms: 6x + -6x = 0
-91 + 6x = -13 + 0
-91 + 6x = -13

Add '91' to each side of the equation.
-91 + 91 + 6x = -13 + 91

Combine like terms: -91 + 91 = 0
0 + 6x = -13 + 91
6x = -13 + 91

Combine like terms: -13 + 91 = 78
6x = 78

Divide each side by '6'.
x = 13

Simplifying
x = 13

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