x+3x-4=2x+20

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


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

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

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

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

Solving
-4 + 4x = 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.
-4 + 4x + -2x = 20 + 2x + -2x

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

Combine like terms: 2x + -2x = 0
-4 + 2x = 20 + 0
-4 + 2x = 20

Add '4' to each side of the equation.
-4 + 4 + 2x = 20 + 4

Combine like terms: -4 + 4 = 0
0 + 2x = 20 + 4
2x = 20 + 4

Combine like terms: 20 + 4 = 24
2x = 24

Divide each side by '2'.
x = 12

Simplifying
x = 12

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