55=-x+100

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Solution for 55=-x+100 equation:


Simplifying
55 = -1x + 100

Reorder the terms:
55 = 100 + -1x

Solving
55 = 100 + -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.
55 + x = 100 + -1x + x

Combine like terms: -1x + x = 0
55 + x = 100 + 0
55 + x = 100

Add '-55' to each side of the equation.
55 + -55 + x = 100 + -55

Combine like terms: 55 + -55 = 0
0 + x = 100 + -55
x = 100 + -55

Combine like terms: 100 + -55 = 45
x = 45

Simplifying
x = 45

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