3y-20+y+40=180

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Solution for 3y-20+y+40=180 equation: 


Simplifying
3y + -20 + y + 40 = 180

Reorder the terms:
-20 + 40 + 3y + y = 180

Combine like terms: -20 + 40 = 20
20 + 3y + y = 180

Combine like terms: 3y + y = 4y
20 + 4y = 180

Solving
20 + 4y = 180

Solving for variable 'y'.

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

Add '-20' to each side of the equation.
20 + -20 + 4y = 180 + -20

Combine like terms: 20 + -20 = 0
0 + 4y = 180 + -20
4y = 180 + -20

Combine like terms: 180 + -20 = 160
4y = 160

Divide each side by '4'.
y = 40

Simplifying
y = 40

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