X+2x-100=x+50+x-100-20

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Solution for X+2x-100=x+50+x-100-20 equation: 


Simplifying
X + 2x + -100 = x + 50 + x + -100 + -20

Reorder the terms:
-100 + X + 2x = x + 50 + x + -100 + -20

Reorder the terms:
-100 + X + 2x = 50 + -100 + -20 + x + x

Combine like terms: 50 + -100 = -50
-100 + X + 2x = -50 + -20 + x + x

Combine like terms: -50 + -20 = -70
-100 + X + 2x = -70 + x + x

Combine like terms: x + x = 2x
-100 + X + 2x = -70 + 2x

Add '-2x' to each side of the equation.
-100 + X + 2x + -2x = -70 + 2x + -2x

Combine like terms: 2x + -2x = 0
-100 + X + 0 = -70 + 2x + -2x
-100 + X = -70 + 2x + -2x

Combine like terms: 2x + -2x = 0
-100 + X = -70 + 0
-100 + X = -70

Solving
-100 + X = -70

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 + X = -70 + 100

Combine like terms: -100 + 100 = 0
0 + X = -70 + 100
X = -70 + 100

Combine like terms: -70 + 100 = 30
X = 30

Simplifying
X = 30

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