4y-7y-20=3-8y+12

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Solution for 4y-7y-20=3-8y+12 equation:


Simplifying
4y + -7y + -20 = 3 + -8y + 12

Reorder the terms:
-20 + 4y + -7y = 3 + -8y + 12

Combine like terms: 4y + -7y = -3y
-20 + -3y = 3 + -8y + 12

Reorder the terms:
-20 + -3y = 3 + 12 + -8y

Combine like terms: 3 + 12 = 15
-20 + -3y = 15 + -8y

Solving
-20 + -3y = 15 + -8y

Solving for variable 'y'.

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

Add '8y' to each side of the equation.
-20 + -3y + 8y = 15 + -8y + 8y

Combine like terms: -3y + 8y = 5y
-20 + 5y = 15 + -8y + 8y

Combine like terms: -8y + 8y = 0
-20 + 5y = 15 + 0
-20 + 5y = 15

Add '20' to each side of the equation.
-20 + 20 + 5y = 15 + 20

Combine like terms: -20 + 20 = 0
0 + 5y = 15 + 20
5y = 15 + 20

Combine like terms: 15 + 20 = 35
5y = 35

Divide each side by '5'.
y = 7

Simplifying
y = 7

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