-3x-56=4x+91

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Solution for -3x-56=4x+91 equation:


Simplifying
-3x + -56 = 4x + 91

Reorder the terms:
-56 + -3x = 4x + 91

Reorder the terms:
-56 + -3x = 91 + 4x

Solving
-56 + -3x = 91 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-56 + -3x + -4x = 91 + 4x + -4x

Combine like terms: -3x + -4x = -7x
-56 + -7x = 91 + 4x + -4x

Combine like terms: 4x + -4x = 0
-56 + -7x = 91 + 0
-56 + -7x = 91

Add '56' to each side of the equation.
-56 + 56 + -7x = 91 + 56

Combine like terms: -56 + 56 = 0
0 + -7x = 91 + 56
-7x = 91 + 56

Combine like terms: 91 + 56 = 147
-7x = 147

Divide each side by '-7'.
x = -21

Simplifying
x = -21

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