90=2x+-12+4x+18

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Solution for 90=2x+-12+4x+18 equation:


Simplifying
90 = 2x + -12 + 4x + 18

Reorder the terms:
90 = -12 + 18 + 2x + 4x

Combine like terms: -12 + 18 = 6
90 = 6 + 2x + 4x

Combine like terms: 2x + 4x = 6x
90 = 6 + 6x

Solving
90 = 6 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
90 + -6x = 6 + 6x + -6x

Combine like terms: 6x + -6x = 0
90 + -6x = 6 + 0
90 + -6x = 6

Add '-90' to each side of the equation.
90 + -90 + -6x = 6 + -90

Combine like terms: 90 + -90 = 0
0 + -6x = 6 + -90
-6x = 6 + -90

Combine like terms: 6 + -90 = -84
-6x = -84

Divide each side by '-6'.
x = 14

Simplifying
x = 14

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