3y-9+y+25=7y+20-5y

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Solution for 3y-9+y+25=7y+20-5y equation: 


Simplifying
3y + -9 + y + 25 = 7y + 20 + -5y

Reorder the terms:
-9 + 25 + 3y + y = 7y + 20 + -5y

Combine like terms: -9 + 25 = 16
16 + 3y + y = 7y + 20 + -5y

Combine like terms: 3y + y = 4y
16 + 4y = 7y + 20 + -5y

Reorder the terms:
16 + 4y = 20 + 7y + -5y

Combine like terms: 7y + -5y = 2y
16 + 4y = 20 + 2y

Solving
16 + 4y = 20 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
16 + 4y + -2y = 20 + 2y + -2y

Combine like terms: 4y + -2y = 2y
16 + 2y = 20 + 2y + -2y

Combine like terms: 2y + -2y = 0
16 + 2y = 20 + 0
16 + 2y = 20

Add '-16' to each side of the equation.
16 + -16 + 2y = 20 + -16

Combine like terms: 16 + -16 = 0
0 + 2y = 20 + -16
2y = 20 + -16

Combine like terms: 20 + -16 = 4
2y = 4

Divide each side by '2'.
y = 2

Simplifying
y = 2

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