4x-20=3(12-3x)

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Solution for 4x-20=3(12-3x) equation:


Simplifying
4x + -20 = 3(12 + -3x)

Reorder the terms:
-20 + 4x = 3(12 + -3x)
-20 + 4x = (12 * 3 + -3x * 3)
-20 + 4x = (36 + -9x)

Solving
-20 + 4x = 36 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
-20 + 4x + 9x = 36 + -9x + 9x

Combine like terms: 4x + 9x = 13x
-20 + 13x = 36 + -9x + 9x

Combine like terms: -9x + 9x = 0
-20 + 13x = 36 + 0
-20 + 13x = 36

Add '20' to each side of the equation.
-20 + 20 + 13x = 36 + 20

Combine like terms: -20 + 20 = 0
0 + 13x = 36 + 20
13x = 36 + 20

Combine like terms: 36 + 20 = 56
13x = 56

Divide each side by '13'.
x = 4.307692308

Simplifying
x = 4.307692308

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