3+2y-1=7y+20-3y

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Solution for 3+2y-1=7y+20-3y equation: 


Simplifying
3 + 2y + -1 = 7y + 20 + -3y

Reorder the terms:
3 + -1 + 2y = 7y + 20 + -3y

Combine like terms: 3 + -1 = 2
2 + 2y = 7y + 20 + -3y

Reorder the terms:
2 + 2y = 20 + 7y + -3y

Combine like terms: 7y + -3y = 4y
2 + 2y = 20 + 4y

Solving
2 + 2y = 20 + 4y

Solving for variable 'y'.

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

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

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

Combine like terms: 4y + -4y = 0
2 + -2y = 20 + 0
2 + -2y = 20

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

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

Combine like terms: 20 + -2 = 18
-2y = 18

Divide each side by '-2'.
y = -9

Simplifying
y = -9

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