7x+12=2x-20

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Solution for 7x+12=2x-20 equation:


Simplifying
7x + 12 = 2x + -20

Reorder the terms:
12 + 7x = 2x + -20

Reorder the terms:
12 + 7x = -20 + 2x

Solving
12 + 7x = -20 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
12 + 7x + -2x = -20 + 2x + -2x

Combine like terms: 7x + -2x = 5x
12 + 5x = -20 + 2x + -2x

Combine like terms: 2x + -2x = 0
12 + 5x = -20 + 0
12 + 5x = -20

Add '-12' to each side of the equation.
12 + -12 + 5x = -20 + -12

Combine like terms: 12 + -12 = 0
0 + 5x = -20 + -12
5x = -20 + -12

Combine like terms: -20 + -12 = -32
5x = -32

Divide each side by '5'.
x = -6.4

Simplifying
x = -6.4

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