-100+18x=-640

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Solution for -100+18x=-640 equation: 


Simplifying
-100 + 18x = -640

Solving
-100 + 18x = -640

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 + 18x = -640 + 100

Combine like terms: -100 + 100 = 0
0 + 18x = -640 + 100
18x = -640 + 100

Combine like terms: -640 + 100 = -540
18x = -540

Divide each side by '18'.
x = -30

Simplifying
x = -30

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