155=-x+40

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Solution for 155=-x+40 equation:


Simplifying
155 = -1x + 40

Reorder the terms:
155 = 40 + -1x

Solving
155 = 40 + -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.
155 + x = 40 + -1x + x

Combine like terms: -1x + x = 0
155 + x = 40 + 0
155 + x = 40

Add '-155' to each side of the equation.
155 + -155 + x = 40 + -155

Combine like terms: 155 + -155 = 0
0 + x = 40 + -155
x = 40 + -155

Combine like terms: 40 + -155 = -115
x = -115

Simplifying
x = -115

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