2y-20+y+y+2y-20=720

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Solution for 2y-20+y+y+2y-20=720 equation: 


Simplifying
2y + -20 + y + y + 2y + -20 = 720

Reorder the terms:
-20 + -20 + 2y + y + y + 2y = 720

Combine like terms: -20 + -20 = -40
-40 + 2y + y + y + 2y = 720

Combine like terms: 2y + y = 3y
-40 + 3y + y + 2y = 720

Combine like terms: 3y + y = 4y
-40 + 4y + 2y = 720

Combine like terms: 4y + 2y = 6y
-40 + 6y = 720

Solving
-40 + 6y = 720

Solving for variable 'y'.

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

Add '40' to each side of the equation.
-40 + 40 + 6y = 720 + 40

Combine like terms: -40 + 40 = 0
0 + 6y = 720 + 40
6y = 720 + 40

Combine like terms: 720 + 40 = 760
6y = 760

Divide each side by '6'.
y = 126.6666667

Simplifying
y = 126.6666667

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