13x=3x-90

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Solution for 13x=3x-90 equation: 


Simplifying
13x = 3x + -90

Reorder the terms:
13x = -90 + 3x

Solving
13x = -90 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
13x + -3x = -90 + 3x + -3x

Combine like terms: 13x + -3x = 10x
10x = -90 + 3x + -3x

Combine like terms: 3x + -3x = 0
10x = -90 + 0
10x = -90

Divide each side by '10'.
x = -9

Simplifying
x = -9

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