82+92+87+x=90

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Solution for 82+92+87+x=90 equation:


Simplifying
82 + 92 + 87 + x = 90

Combine like terms: 82 + 92 = 174
174 + 87 + x = 90

Combine like terms: 174 + 87 = 261
261 + x = 90

Solving
261 + x = 90

Solving for variable 'x'.

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

Add '-261' to each side of the equation.
261 + -261 + x = 90 + -261

Combine like terms: 261 + -261 = 0
0 + x = 90 + -261
x = 90 + -261

Combine like terms: 90 + -261 = -171
x = -171

Simplifying
x = -171

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