90-5x=7x+18

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Solution for 90-5x=7x+18 equation:


Simplifying
90 + -5x = 7x + 18

Reorder the terms:
90 + -5x = 18 + 7x

Solving
90 + -5x = 18 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
90 + -5x + -7x = 18 + 7x + -7x

Combine like terms: -5x + -7x = -12x
90 + -12x = 18 + 7x + -7x

Combine like terms: 7x + -7x = 0
90 + -12x = 18 + 0
90 + -12x = 18

Add '-90' to each side of the equation.
90 + -90 + -12x = 18 + -90

Combine like terms: 90 + -90 = 0
0 + -12x = 18 + -90
-12x = 18 + -90

Combine like terms: 18 + -90 = -72
-12x = -72

Divide each side by '-12'.
x = 6

Simplifying
x = 6

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