2x-4+x+8=3x+20

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Solution for 2x-4+x+8=3x+20 equation: 


Simplifying
2x + -4 + x + 8 = 3x + 20

Reorder the terms:
-4 + 8 + 2x + x = 3x + 20

Combine like terms: -4 + 8 = 4
4 + 2x + x = 3x + 20

Combine like terms: 2x + x = 3x
4 + 3x = 3x + 20

Reorder the terms:
4 + 3x = 20 + 3x

Add '-3x' to each side of the equation.
4 + 3x + -3x = 20 + 3x + -3x

Combine like terms: 3x + -3x = 0
4 + 0 = 20 + 3x + -3x
4 = 20 + 3x + -3x

Combine like terms: 3x + -3x = 0
4 = 20 + 0
4 = 20

Solving
4 = 20

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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