x+3x-2+8=20

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


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

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

Combine like terms: -2 + 8 = 6
6 + x + 3x = 20

Combine like terms: x + 3x = 4x
6 + 4x = 20

Solving
6 + 4x = 20

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 4x = 20 + -6

Combine like terms: 6 + -6 = 0
0 + 4x = 20 + -6
4x = 20 + -6

Combine like terms: 20 + -6 = 14
4x = 14

Divide each side by '4'.
x = 3.5

Simplifying
x = 3.5

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