90+30+66+x=180

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


Simplifying
90 + 30 + 66 + x = 180

Combine like terms: 90 + 30 = 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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