7x+12=3(5x-9)

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Solution for 7x+12=3(5x-9) equation:


Simplifying
7x + 12 = 3(5x + -9)

Reorder the terms:
12 + 7x = 3(5x + -9)

Reorder the terms:
12 + 7x = 3(-9 + 5x)
12 + 7x = (-9 * 3 + 5x * 3)
12 + 7x = (-27 + 15x)

Solving
12 + 7x = -27 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
12 + 7x + -15x = -27 + 15x + -15x

Combine like terms: 7x + -15x = -8x
12 + -8x = -27 + 15x + -15x

Combine like terms: 15x + -15x = 0
12 + -8x = -27 + 0
12 + -8x = -27

Add '-12' to each side of the equation.
12 + -12 + -8x = -27 + -12

Combine like terms: 12 + -12 = 0
0 + -8x = -27 + -12
-8x = -27 + -12

Combine like terms: -27 + -12 = -39
-8x = -39

Divide each side by '-8'.
x = 4.875

Simplifying
x = 4.875

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