7+(12+x)=20

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


Simplifying
7 + (12 + x) = 20

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

Combine like terms: 7 + 12 = 19
19 + x = 20

Solving
19 + x = 20

Solving for variable 'x'.

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

Add '-19' to each side of the equation.
19 + -19 + x = 20 + -19

Combine like terms: 19 + -19 = 0
0 + x = 20 + -19
x = 20 + -19

Combine like terms: 20 + -19 = 1
x = 1

Simplifying
x = 1

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