x+90+99=180

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Solution for x+90+99=180 equation: 


Simplifying
x + 90 + 99 = 180

Reorder the terms:
90 + 99 + x = 180

Combine like terms: 90 + 99 = 189
189 + x = 180

Solving
189 + x = 180

Solving for variable 'x'.

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

Add '-189' to each side of the equation.
189 + -189 + x = 180 + -189

Combine like terms: 189 + -189 = 0
0 + x = 180 + -189
x = 180 + -189

Combine like terms: 180 + -189 = -9
x = -9

Simplifying
x = -9

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