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

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


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

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

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

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

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

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

Combine like terms: 7 + 9 = 16
16 + x + x + x = 180

Combine like terms: x + x = 2x
16 + 2x + x = 180

Combine like terms: 2x + x = 3x
16 + 3x = 180

Solving
16 + 3x = 180

Solving for variable 'x'.

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

Add '-16' to each side of the equation.
16 + -16 + 3x = 180 + -16

Combine like terms: 16 + -16 = 0
0 + 3x = 180 + -16
3x = 180 + -16

Combine like terms: 180 + -16 = 164
3x = 164

Divide each side by '3'.
x = 54.66666667

Simplifying
x = 54.66666667

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