-15x-20=-13x+90

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Solution for -15x-20=-13x+90 equation:


Simplifying
-15x + -20 = -13x + 90

Reorder the terms:
-20 + -15x = -13x + 90

Reorder the terms:
-20 + -15x = 90 + -13x

Solving
-20 + -15x = 90 + -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.
-20 + -15x + 13x = 90 + -13x + 13x

Combine like terms: -15x + 13x = -2x
-20 + -2x = 90 + -13x + 13x

Combine like terms: -13x + 13x = 0
-20 + -2x = 90 + 0
-20 + -2x = 90

Add '20' to each side of the equation.
-20 + 20 + -2x = 90 + 20

Combine like terms: -20 + 20 = 0
0 + -2x = 90 + 20
-2x = 90 + 20

Combine like terms: 90 + 20 = 110
-2x = 110

Divide each side by '-2'.
x = -55

Simplifying
x = -55

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