3x-8=20-x

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


Simplifying
3x + -8 = 20 + -1x

Reorder the terms:
-8 + 3x = 20 + -1x

Solving
-8 + 3x = 20 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-8 + 3x + x = 20 + -1x + x

Combine like terms: 3x + x = 4x
-8 + 4x = 20 + -1x + x

Combine like terms: -1x + x = 0
-8 + 4x = 20 + 0
-8 + 4x = 20

Add '8' to each side of the equation.
-8 + 8 + 4x = 20 + 8

Combine like terms: -8 + 8 = 0
0 + 4x = 20 + 8
4x = 20 + 8

Combine like terms: 20 + 8 = 28
4x = 28

Divide each side by '4'.
x = 7

Simplifying
x = 7

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