3(x+4)-20=x

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Solution for 3(x+4)-20=x equation: 


Simplifying
3(x + 4) + -20 = x

Reorder the terms:
3(4 + x) + -20 = x
(4 * 3 + x * 3) + -20 = x
(12 + 3x) + -20 = x

Reorder the terms:
12 + -20 + 3x = x

Combine like terms: 12 + -20 = -8
-8 + 3x = x

Solving
-8 + 3x = x

Solving for variable 'x'.

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

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

Combine like terms: 3x + -1x = 2x
-8 + 2x = x + -1x

Combine like terms: x + -1x = 0
-8 + 2x = 0

Add '8' to each side of the equation.
-8 + 8 + 2x = 0 + 8

Combine like terms: -8 + 8 = 0
0 + 2x = 0 + 8
2x = 0 + 8

Combine like terms: 0 + 8 = 8
2x = 8

Divide each side by '2'.
x = 4

Simplifying
x = 4

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