(x+-7)+12=20

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Solution for (x+-7)+12=20 equation:


Simplifying
(x + -7) + 12 = 20

Reorder the terms:
(-7 + x) + 12 = 20

Remove parenthesis around (-7 + x)
-7 + x + 12 = 20

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

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

Solving
5 + x = 20

Solving for variable 'x'.

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

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

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

Combine like terms: 20 + -5 = 15
x = 15

Simplifying
x = 15

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