-3y-15=7y+15

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Solution for -3y-15=7y+15 equation:


Simplifying
-3y + -15 = 7y + 15

Reorder the terms:
-15 + -3y = 7y + 15

Reorder the terms:
-15 + -3y = 15 + 7y

Solving
-15 + -3y = 15 + 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 + -3y + -7y = 15 + 7y + -7y

Combine like terms: -3y + -7y = -10y
-15 + -10y = 15 + 7y + -7y

Combine like terms: 7y + -7y = 0
-15 + -10y = 15 + 0
-15 + -10y = 15

Add '15' to each side of the equation.
-15 + 15 + -10y = 15 + 15

Combine like terms: -15 + 15 = 0
0 + -10y = 15 + 15
-10y = 15 + 15

Combine like terms: 15 + 15 = 30
-10y = 30

Divide each side by '-10'.
y = -3

Simplifying
y = -3

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