90-2X=4X+12

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Solution for 90-2X=4X+12 equation:


Simplifying
90 + -2X = 4X + 12

Reorder the terms:
90 + -2X = 12 + 4X

Solving
90 + -2X = 12 + 4X

Solving for variable 'X'.

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

Add '-4X' to each side of the equation.
90 + -2X + -4X = 12 + 4X + -4X

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

Combine like terms: 4X + -4X = 0
90 + -6X = 12 + 0
90 + -6X = 12

Add '-90' to each side of the equation.
90 + -90 + -6X = 12 + -90

Combine like terms: 90 + -90 = 0
0 + -6X = 12 + -90
-6X = 12 + -90

Combine like terms: 12 + -90 = -78
-6X = -78

Divide each side by '-6'.
X = 13

Simplifying
X = 13

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