120-5x=21

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Solution for 120-5x=21 equation: 


Simplifying
120 + -5x = 21

Solving
120 + -5x = 21

Solving for variable 'x'.

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

Add '-120' to each side of the equation.
120 + -120 + -5x = 21 + -120

Combine like terms: 120 + -120 = 0
0 + -5x = 21 + -120
-5x = 21 + -120

Combine like terms: 21 + -120 = -99
-5x = -99

Divide each side by '-5'.
x = 19.8

Simplifying
x = 19.8

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