2x+12=4x-30

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Solution for 2x+12=4x-30 equation:


Simplifying
2x + 12 = 4x + -30

Reorder the terms:
12 + 2x = 4x + -30

Reorder the terms:
12 + 2x = -30 + 4x

Solving
12 + 2x = -30 + 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.
12 + 2x + -4x = -30 + 4x + -4x

Combine like terms: 2x + -4x = -2x
12 + -2x = -30 + 4x + -4x

Combine like terms: 4x + -4x = 0
12 + -2x = -30 + 0
12 + -2x = -30

Add '-12' to each side of the equation.
12 + -12 + -2x = -30 + -12

Combine like terms: 12 + -12 = 0
0 + -2x = -30 + -12
-2x = -30 + -12

Combine like terms: -30 + -12 = -42
-2x = -42

Divide each side by '-2'.
x = 21

Simplifying
x = 21

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