4x-8=91-7x

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Solution for 4x-8=91-7x equation:


Simplifying
4x + -8 = 91 + -7x

Reorder the terms:
-8 + 4x = 91 + -7x

Solving
-8 + 4x = 91 + -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.
-8 + 4x + 7x = 91 + -7x + 7x

Combine like terms: 4x + 7x = 11x
-8 + 11x = 91 + -7x + 7x

Combine like terms: -7x + 7x = 0
-8 + 11x = 91 + 0
-8 + 11x = 91

Add '8' to each side of the equation.
-8 + 8 + 11x = 91 + 8

Combine like terms: -8 + 8 = 0
0 + 11x = 91 + 8
11x = 91 + 8

Combine like terms: 91 + 8 = 99
11x = 99

Divide each side by '11'.
x = 9

Simplifying
x = 9

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