287=-x+220

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Solution for 287=-x+220 equation:


Simplifying
287 = -1x + 220

Reorder the terms:
287 = 220 + -1x

Solving
287 = 220 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
287 + x = 220 + -1x + x

Combine like terms: -1x + x = 0
287 + x = 220 + 0
287 + x = 220

Add '-287' to each side of the equation.
287 + -287 + x = 220 + -287

Combine like terms: 287 + -287 = 0
0 + x = 220 + -287
x = 220 + -287

Combine like terms: 220 + -287 = -67
x = -67

Simplifying
x = -67

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