3(4+x)=5(x-4)

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Solution for 3(4+x)=5(x-4) equation:


Simplifying
3(4 + x) = 5(x + -4)
(4 * 3 + x * 3) = 5(x + -4)
(12 + 3x) = 5(x + -4)

Reorder the terms:
12 + 3x = 5(-4 + x)
12 + 3x = (-4 * 5 + x * 5)
12 + 3x = (-20 + 5x)

Solving
12 + 3x = -20 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
12 + 3x + -5x = -20 + 5x + -5x

Combine like terms: 3x + -5x = -2x
12 + -2x = -20 + 5x + -5x

Combine like terms: 5x + -5x = 0
12 + -2x = -20 + 0
12 + -2x = -20

Add '-12' to each side of the equation.
12 + -12 + -2x = -20 + -12

Combine like terms: 12 + -12 = 0
0 + -2x = -20 + -12
-2x = -20 + -12

Combine like terms: -20 + -12 = -32
-2x = -32

Divide each side by '-2'.
x = 16

Simplifying
x = 16

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