5x+90=20x-15

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Solution for 5x+90=20x-15 equation:


Simplifying
5x + 90 = 20x + -15

Reorder the terms:
90 + 5x = 20x + -15

Reorder the terms:
90 + 5x = -15 + 20x

Solving
90 + 5x = -15 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
90 + 5x + -20x = -15 + 20x + -20x

Combine like terms: 5x + -20x = -15x
90 + -15x = -15 + 20x + -20x

Combine like terms: 20x + -20x = 0
90 + -15x = -15 + 0
90 + -15x = -15

Add '-90' to each side of the equation.
90 + -90 + -15x = -15 + -90

Combine like terms: 90 + -90 = 0
0 + -15x = -15 + -90
-15x = -15 + -90

Combine like terms: -15 + -90 = -105
-15x = -105

Divide each side by '-15'.
x = 7

Simplifying
x = 7

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