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

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


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

Reorder the terms:
7x + 3(12 + x) = 9(x + 12)
7x + (12 * 3 + x * 3) = 9(x + 12)
7x + (36 + 3x) = 9(x + 12)

Reorder the terms:
36 + 7x + 3x = 9(x + 12)

Combine like terms: 7x + 3x = 10x
36 + 10x = 9(x + 12)

Reorder the terms:
36 + 10x = 9(12 + x)
36 + 10x = (12 * 9 + x * 9)
36 + 10x = (108 + 9x)

Solving
36 + 10x = 108 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
36 + 10x + -9x = 108 + 9x + -9x

Combine like terms: 10x + -9x = 1x
36 + 1x = 108 + 9x + -9x

Combine like terms: 9x + -9x = 0
36 + 1x = 108 + 0
36 + 1x = 108

Add '-36' to each side of the equation.
36 + -36 + 1x = 108 + -36

Combine like terms: 36 + -36 = 0
0 + 1x = 108 + -36
1x = 108 + -36

Combine like terms: 108 + -36 = 72
1x = 72

Divide each side by '1'.
x = 72

Simplifying
x = 72

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