-1x+100=42

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Solution for -1x+100=42 equation: 


Simplifying
-1x + 100 = 42

Reorder the terms:
100 + -1x = 42

Solving
100 + -1x = 42

Solving for variable 'x'.

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

Add '-100' to each side of the equation.
100 + -100 + -1x = 42 + -100

Combine like terms: 100 + -100 = 0
0 + -1x = 42 + -100
-1x = 42 + -100

Combine like terms: 42 + -100 = -58
-1x = -58

Divide each side by '-1'.
x = 58

Simplifying
x = 58

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