100=3x-20

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Solution for 100=3x-20 equation:


Simplifying
100 = 3x + -20

Reorder the terms:
100 = -20 + 3x

Solving
100 = -20 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
100 + -3x = -20 + 3x + -3x

Combine like terms: 3x + -3x = 0
100 + -3x = -20 + 0
100 + -3x = -20

Add '-100' to each side of the equation.
100 + -100 + -3x = -20 + -100

Combine like terms: 100 + -100 = 0
0 + -3x = -20 + -100
-3x = -20 + -100

Combine like terms: -20 + -100 = -120
-3x = -120

Divide each side by '-3'.
x = 40

Simplifying
x = 40

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