-15=77-x

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Solution for -15=77-x equation:


Simplifying
-15 = 77 + -1x

Solving
-15 = 77 + -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.
-15 + x = 77 + -1x + x

Combine like terms: -1x + x = 0
-15 + x = 77 + 0
-15 + x = 77

Add '15' to each side of the equation.
-15 + 15 + x = 77 + 15

Combine like terms: -15 + 15 = 0
0 + x = 77 + 15
x = 77 + 15

Combine like terms: 77 + 15 = 92
x = 92

Simplifying
x = 92

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