Solve for y
y=1
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12=3\left(y+3\right)
Variable y cannot be equal to -3 since division by zero is not defined. Multiply both sides of the equation by y+3.
12=3y+9
Use the distributive property to multiply 3 by y+3.
3y+9=12
Swap sides so that all variable terms are on the left hand side.
3y=12-9
Subtract 9 from both sides.
3y=3
Subtract 9 from 12 to get 3.
y=\frac{3}{3}
Divide both sides by 3.
y=1
Divide 3 by 3 to get 1.
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