12=4x+7+2x-7

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Solution for 12=4x+7+2x-7 equation:


Simplifying
12 = 4x + 7 + 2x + -7

Reorder the terms:
12 = 7 + -7 + 4x + 2x

Combine like terms: 7 + -7 = 0
12 = 0 + 4x + 2x
12 = 4x + 2x

Combine like terms: 4x + 2x = 6x
12 = 6x

Solving
12 = 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.
12 + -6x = 6x + -6x

Combine like terms: 6x + -6x = 0
12 + -6x = 0

Add '-12' to each side of the equation.
12 + -12 + -6x = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -6x = 0 + -12
-6x = 0 + -12

Combine like terms: 0 + -12 = -12
-6x = -12

Divide each side by '-6'.
x = 2

Simplifying
x = 2

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