x+77+20+90=180

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Solution for x+77+20+90=180 equation:


Simplifying
x + 77 + 20 + 90 = 180

Reorder the terms:
77 + 20 + 90 + x = 180

Combine like terms: 77 + 20 = 97
97 + 90 + x = 180

Combine like terms: 97 + 90 = 187
187 + x = 180

Solving
187 + x = 180

Solving for variable 'x'.

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

Add '-187' to each side of the equation.
187 + -187 + x = 180 + -187

Combine like terms: 187 + -187 = 0
0 + x = 180 + -187
x = 180 + -187

Combine like terms: 180 + -187 = -7
x = -7

Simplifying
x = -7

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