100-45-x=76

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Solution for 100-45-x=76 equation: 


Simplifying
100 + -45 + -1x = 76

Combine like terms: 100 + -45 = 55
55 + -1x = 76

Solving
55 + -1x = 76

Solving for variable 'x'.

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

Add '-55' to each side of the equation.
55 + -55 + -1x = 76 + -55

Combine like terms: 55 + -55 = 0
0 + -1x = 76 + -55
-1x = 76 + -55

Combine like terms: 76 + -55 = 21
-1x = 21

Divide each side by '-1'.
x = -21

Simplifying
x = -21

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