12+(x-3)=20

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Solution for 12+(x-3)=20 equation:


Simplifying
12 + (x + -3) = 20

Reorder the terms:
12 + (-3 + x) = 20

Remove parenthesis around (-3 + x)
12 + -3 + x = 20

Combine like terms: 12 + -3 = 9
9 + x = 20

Solving
9 + x = 20

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + x = 20 + -9

Combine like terms: 9 + -9 = 0
0 + x = 20 + -9
x = 20 + -9

Combine like terms: 20 + -9 = 11
x = 11

Simplifying
x = 11

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