(9x+5)+(12x-7)=180

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Solution for (9x+5)+(12x-7)=180 equation:


Simplifying
(9x + 5) + (12x + -7) = 180

Reorder the terms:
(5 + 9x) + (12x + -7) = 180

Remove parenthesis around (5 + 9x)
5 + 9x + (12x + -7) = 180

Reorder the terms:
5 + 9x + (-7 + 12x) = 180

Remove parenthesis around (-7 + 12x)
5 + 9x + -7 + 12x = 180

Reorder the terms:
5 + -7 + 9x + 12x = 180

Combine like terms: 5 + -7 = -2
-2 + 9x + 12x = 180

Combine like terms: 9x + 12x = 21x
-2 + 21x = 180

Solving
-2 + 21x = 180

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + 21x = 180 + 2

Combine like terms: -2 + 2 = 0
0 + 21x = 180 + 2
21x = 180 + 2

Combine like terms: 180 + 2 = 182
21x = 182

Divide each side by '21'.
x = 8.666666667

Simplifying
x = 8.666666667

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