X+2x+12=90

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Solution for X+2x+12=90 equation:


Simplifying
X + 2x + 12 = 90

Reorder the terms:
12 + X + 2x = 90

Solving
12 + X + 2x = 90

Solving for variable 'X'.

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

Add '-12' to each side of the equation.
12 + X + -12 + 2x = 90 + -12

Reorder the terms:
12 + -12 + X + 2x = 90 + -12

Combine like terms: 12 + -12 = 0
0 + X + 2x = 90 + -12
X + 2x = 90 + -12

Combine like terms: 90 + -12 = 78
X + 2x = 78

Add '-2x' to each side of the equation.
X + 2x + -2x = 78 + -2x

Combine like terms: 2x + -2x = 0
X + 0 = 78 + -2x
X = 78 + -2x

Simplifying
X = 78 + -2x

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