(7x+3)+(5x+9)=180

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Solution for (7x+3)+(5x+9)=180 equation:


Simplifying
(7x + 3) + (5x + 9) = 180

Reorder the terms:
(3 + 7x) + (5x + 9) = 180

Remove parenthesis around (3 + 7x)
3 + 7x + (5x + 9) = 180

Reorder the terms:
3 + 7x + (9 + 5x) = 180

Remove parenthesis around (9 + 5x)
3 + 7x + 9 + 5x = 180

Reorder the terms:
3 + 9 + 7x + 5x = 180

Combine like terms: 3 + 9 = 12
12 + 7x + 5x = 180

Combine like terms: 7x + 5x = 12x
12 + 12x = 180

Solving
12 + 12x = 180

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 12x = 180 + -12

Combine like terms: 12 + -12 = 0
0 + 12x = 180 + -12
12x = 180 + -12

Combine like terms: 180 + -12 = 168
12x = 168

Divide each side by '12'.
x = 14

Simplifying
x = 14

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