15y-20=12y+7

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Solution for 15y-20=12y+7 equation:


Simplifying
15y + -20 = 12y + 7

Reorder the terms:
-20 + 15y = 12y + 7

Reorder the terms:
-20 + 15y = 7 + 12y

Solving
-20 + 15y = 7 + 12y

Solving for variable 'y'.

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

Add '-12y' to each side of the equation.
-20 + 15y + -12y = 7 + 12y + -12y

Combine like terms: 15y + -12y = 3y
-20 + 3y = 7 + 12y + -12y

Combine like terms: 12y + -12y = 0
-20 + 3y = 7 + 0
-20 + 3y = 7

Add '20' to each side of the equation.
-20 + 20 + 3y = 7 + 20

Combine like terms: -20 + 20 = 0
0 + 3y = 7 + 20
3y = 7 + 20

Combine like terms: 7 + 20 = 27
3y = 27

Divide each side by '3'.
y = 9

Simplifying
y = 9

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