7x+(x+12)=180

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Solution for 7x+(x+12)=180 equation:


Simplifying
7x + (x + 12) = 180

Reorder the terms:
7x + (12 + x) = 180

Remove parenthesis around (12 + x)
7x + 12 + x = 180

Reorder the terms:
12 + 7x + x = 180

Combine like terms: 7x + x = 8x
12 + 8x = 180

Solving
12 + 8x = 180

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 + 8x = 180 + -12

Combine like terms: 12 + -12 = 0
0 + 8x = 180 + -12
8x = 180 + -12

Combine like terms: 180 + -12 = 168
8x = 168

Divide each side by '8'.
x = 21

Simplifying
x = 21

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