130+90+x=180

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Solution for 130+90+x=180 equation: 


Simplifying
130 + 90 + x = 180

Combine like terms: 130 + 90 = 220
220 + x = 180

Solving
220 + x = 180

Solving for variable 'x'.

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

Add '-220' to each side of the equation.
220 + -220 + x = 180 + -220

Combine like terms: 220 + -220 = 0
0 + x = 180 + -220
x = 180 + -220

Combine like terms: 180 + -220 = -40
x = -40

Simplifying
x = -40

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