12x-15=5(x+4)

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Solution for 12x-15=5(x+4) equation:


Simplifying
12x + -15 = 5(x + 4)

Reorder the terms:
-15 + 12x = 5(x + 4)

Reorder the terms:
-15 + 12x = 5(4 + x)
-15 + 12x = (4 * 5 + x * 5)
-15 + 12x = (20 + 5x)

Solving
-15 + 12x = 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.
-15 + 12x + -5x = 20 + 5x + -5x

Combine like terms: 12x + -5x = 7x
-15 + 7x = 20 + 5x + -5x

Combine like terms: 5x + -5x = 0
-15 + 7x = 20 + 0
-15 + 7x = 20

Add '15' to each side of the equation.
-15 + 15 + 7x = 20 + 15

Combine like terms: -15 + 15 = 0
0 + 7x = 20 + 15
7x = 20 + 15

Combine like terms: 20 + 15 = 35
7x = 35

Divide each side by '7'.
x = 5

Simplifying
x = 5

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