12y-15=7y+20

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


Simplifying
12y + -15 = 7y + 20

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

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

Solving
-15 + 12y = 20 + 7y

Solving for variable 'y'.

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

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

Combine like terms: 12y + -7y = 5y
-15 + 5y = 20 + 7y + -7y

Combine like terms: 7y + -7y = 0
-15 + 5y = 20 + 0
-15 + 5y = 20

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

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

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

Divide each side by '5'.
y = 7

Simplifying
y = 7

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