30+90+(66+x)=180

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Solution for 30+90+(66+x)=180 equation: 


Simplifying
30 + 90 + (66 + x) = 180

Remove parenthesis around (66 + x)
30 + 90 + 66 + x = 180

Combine like terms: 30 + 90 = 120
120 + 66 + x = 180

Combine like terms: 120 + 66 = 186
186 + x = 180

Solving
186 + x = 180

Solving for variable 'x'.

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

Add '-186' to each side of the equation.
186 + -186 + x = 180 + -186

Combine like terms: 186 + -186 = 0
0 + x = 180 + -186
x = 180 + -186

Combine like terms: 180 + -186 = -6
x = -6

Simplifying
x = -6

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