4y+12=5y-15

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Solution for 4y+12=5y-15 equation: 


Simplifying
4y + 12 = 5y + -15

Reorder the terms:
12 + 4y = 5y + -15

Reorder the terms:
12 + 4y = -15 + 5y

Solving
12 + 4y = -15 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
12 + 4y + -5y = -15 + 5y + -5y

Combine like terms: 4y + -5y = -1y
12 + -1y = -15 + 5y + -5y

Combine like terms: 5y + -5y = 0
12 + -1y = -15 + 0
12 + -1y = -15

Add '-12' to each side of the equation.
12 + -12 + -1y = -15 + -12

Combine like terms: 12 + -12 = 0
0 + -1y = -15 + -12
-1y = -15 + -12

Combine like terms: -15 + -12 = -27
-1y = -27

Divide each side by '-1'.
y = 27

Simplifying
y = 27

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