91-5x=13x+15

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Solution for 91-5x=13x+15 equation:


Simplifying
91 + -5x = 13x + 15

Reorder the terms:
91 + -5x = 15 + 13x

Solving
91 + -5x = 15 + 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.
91 + -5x + -13x = 15 + 13x + -13x

Combine like terms: -5x + -13x = -18x
91 + -18x = 15 + 13x + -13x

Combine like terms: 13x + -13x = 0
91 + -18x = 15 + 0
91 + -18x = 15

Add '-91' to each side of the equation.
91 + -91 + -18x = 15 + -91

Combine like terms: 91 + -91 = 0
0 + -18x = 15 + -91
-18x = 15 + -91

Combine like terms: 15 + -91 = -76
-18x = -76

Divide each side by '-18'.
x = 4.222222222

Simplifying
x = 4.222222222

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