-15=8y-3y

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Solution for -15=8y-3y equation:


Simplifying
-15 = 8y + -3y

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

Solving
-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.
-15 + -5y = 5y + -5y

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

Add '15' to each side of the equation.
-15 + 15 + -5y = 0 + 15

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

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

Divide each side by '-5'.
y = -3

Simplifying
y = -3

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