20=8+3(12+x)

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Solution for 20=8+3(12+x) equation:


Simplifying
20 = 8 + 3(12 + x)
20 = 8 + (12 * 3 + x * 3)
20 = 8 + (36 + 3x)

Combine like terms: 8 + 36 = 44
20 = 44 + 3x

Solving
20 = 44 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
20 + -3x = 44 + 3x + -3x

Combine like terms: 3x + -3x = 0
20 + -3x = 44 + 0
20 + -3x = 44

Add '-20' to each side of the equation.
20 + -20 + -3x = 44 + -20

Combine like terms: 20 + -20 = 0
0 + -3x = 44 + -20
-3x = 44 + -20

Combine like terms: 44 + -20 = 24
-3x = 24

Divide each side by '-3'.
x = -8

Simplifying
x = -8

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