20=8+3+3(12+4x)

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Solution for 20=8+3+3(12+4x) equation:


Simplifying
20 = 8 + 3 + 3(12 + 4x)
20 = 8 + 3 + (12 * 3 + 4x * 3)
20 = 8 + 3 + (36 + 12x)

Combine like terms: 8 + 3 = 11
20 = 11 + 36 + 12x

Combine like terms: 11 + 36 = 47
20 = 47 + 12x

Solving
20 = 47 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
20 + -12x = 47 + 12x + -12x

Combine like terms: 12x + -12x = 0
20 + -12x = 47 + 0
20 + -12x = 47

Add '-20' to each side of the equation.
20 + -20 + -12x = 47 + -20

Combine like terms: 20 + -20 = 0
0 + -12x = 47 + -20
-12x = 47 + -20

Combine like terms: 47 + -20 = 27
-12x = 27

Divide each side by '-12'.
x = -2.25

Simplifying
x = -2.25

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