20-x=12+x

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Solution for 20-x=12+x equation:


Simplifying
20 + -1x = 12 + x

Solving
20 + -1x = 12 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
20 + -1x + -1x = 12 + x + -1x

Combine like terms: -1x + -1x = -2x
20 + -2x = 12 + x + -1x

Combine like terms: x + -1x = 0
20 + -2x = 12 + 0
20 + -2x = 12

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

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

Combine like terms: 12 + -20 = -8
-2x = -8

Divide each side by '-2'.
x = 4

Simplifying
x = 4

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