Answer:
y=20
Step-by-step explanation:
Move all terms containing y to the left, all other terms to the right.
Add -3y to each side of the equation.
48 + -3y = -12 + 3y + -3y
Combine like terms: 3y + -3y = 0
48 + -3y = -12 + 0
48 + -3y = -12
Add -48 to each side of the equation.
48 + -48 + -3y = -12 + -48
Combine like terms: 48 + -48 = 0
0 + -3y = -12 + -48
-3y = -12 + -48
Combine like terms: -12 + -48 = -60
-3y = -60
Divide each side by -3.
y = 20
Simplifying
y = 20
