y+(y+30)+40=180

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Solution for y+(y+30)+40=180 equation: 


Simplifying
y + (y + 30) + 40 = 180

Reorder the terms:
y + (30 + y) + 40 = 180

Remove parenthesis around (30 + y)
y + 30 + y + 40 = 180

Reorder the terms:
30 + 40 + y + y = 180

Combine like terms: 30 + 40 = 70
70 + y + y = 180

Combine like terms: y + y = 2y
70 + 2y = 180

Solving
70 + 2y = 180

Solving for variable 'y'.

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

Add '-70' to each side of the equation.
70 + -70 + 2y = 180 + -70

Combine like terms: 70 + -70 = 0
0 + 2y = 180 + -70
2y = 180 + -70

Combine like terms: 180 + -70 = 110
2y = 110

Divide each side by '2'.
y = 55

Simplifying
y = 55

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