3x+4-8=20

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


Simplifying
3x + 4 + -8 = 20

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

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

Solving
-4 + 3x = 20

Solving for variable 'x'.

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

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

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

Combine like terms: 20 + 4 = 24
3x = 24

Divide each side by '3'.
x = 8

Simplifying
x = 8

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