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

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


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

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

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

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

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

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

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

Combine like terms: 3x + 5x = 8x
12 + 8x = 180

Solving
12 + 8x = 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 + 8x = 180 + -12

Combine like terms: 12 + -12 = 0
0 + 8x = 180 + -12
8x = 180 + -12

Combine like terms: 180 + -12 = 168
8x = 168

Divide each side by '8'.
x = 21

Simplifying
x = 21

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