x+(x+12)=20

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


Simplifying
x + (x + 12) = 20

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

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

Reorder the terms:
12 + x + x = 20

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

Solving
12 + 2x = 20

Solving for variable 'x'.

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

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

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

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

Divide each side by '2'.
x = 4

Simplifying
x = 4

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