x+(x+15)+(x+75)=180

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Solution for x+(x+15)+(x+75)=180 equation:


Simplifying
x + (x + 15) + (x + 75) = 180

Reorder the terms:
x + (15 + x) + (x + 75) = 180

Remove parenthesis around (15 + x)
x + 15 + x + (x + 75) = 180

Reorder the terms:
x + 15 + x + (75 + x) = 180

Remove parenthesis around (75 + x)
x + 15 + x + 75 + x = 180

Reorder the terms:
15 + 75 + x + x + x = 180

Combine like terms: 15 + 75 = 90
90 + x + x + x = 180

Combine like terms: x + x = 2x
90 + 2x + x = 180

Combine like terms: 2x + x = 3x
90 + 3x = 180

Solving
90 + 3x = 180

Solving for variable 'x'.

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

Add '-90' to each side of the equation.
90 + -90 + 3x = 180 + -90

Combine like terms: 90 + -90 = 0
0 + 3x = 180 + -90
3x = 180 + -90

Combine like terms: 180 + -90 = 90
3x = 90

Divide each side by '3'.
x = 30

Simplifying
x = 30

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