5x-11+128=13x+21

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Solution for 5x-11+128=13x+21 equation:


Simplifying
5x + -11 + 128 = 13x + 21

Reorder the terms:
-11 + 128 + 5x = 13x + 21

Combine like terms: -11 + 128 = 117
117 + 5x = 13x + 21

Reorder the terms:
117 + 5x = 21 + 13x

Solving
117 + 5x = 21 + 13x

Solving for variable 'x'.

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

Add '-13x' to each side of the equation.
117 + 5x + -13x = 21 + 13x + -13x

Combine like terms: 5x + -13x = -8x
117 + -8x = 21 + 13x + -13x

Combine like terms: 13x + -13x = 0
117 + -8x = 21 + 0
117 + -8x = 21

Add '-117' to each side of the equation.
117 + -117 + -8x = 21 + -117

Combine like terms: 117 + -117 = 0
0 + -8x = 21 + -117
-8x = 21 + -117

Combine like terms: 21 + -117 = -96
-8x = -96

Divide each side by '-8'.
x = 12

Simplifying
x = 12

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