(x+7)+(3x+5)+(4x)=180

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Solution for (x+7)+(3x+5)+(4x)=180 equation:


Simplifying
(x + 7) + (3x + 5) + (4x) = 180

Reorder the terms:
(7 + x) + (3x + 5) + (4x) = 180

Remove parenthesis around (7 + x)
7 + x + (3x + 5) + (4x) = 180

Reorder the terms:
7 + x + (5 + 3x) + (4x) = 180

Remove parenthesis around (5 + 3x)
7 + x + 5 + 3x + (4x) = 180

Reorder the terms:
7 + 5 + x + 3x + (4x) = 180

Combine like terms: 7 + 5 = 12
12 + x + 3x + (4x) = 180

Combine like terms: x + 3x = 4x
12 + 4x + (4x) = 180

Combine like terms: 4x + (4x) = 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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