3x+100=2x-20

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Solution for 3x+100=2x-20 equation:


Simplifying
3x + 100 = 2x + -20

Reorder the terms:
100 + 3x = 2x + -20

Reorder the terms:
100 + 3x = -20 + 2x

Solving
100 + 3x = -20 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
100 + 3x + -2x = -20 + 2x + -2x

Combine like terms: 3x + -2x = 1x
100 + 1x = -20 + 2x + -2x

Combine like terms: 2x + -2x = 0
100 + 1x = -20 + 0
100 + 1x = -20

Add '-100' to each side of the equation.
100 + -100 + 1x = -20 + -100

Combine like terms: 100 + -100 = 0
0 + 1x = -20 + -100
1x = -20 + -100

Combine like terms: -20 + -100 = -120
1x = -120

Divide each side by '1'.
x = -120

Simplifying
x = -120

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