Answer:
Step-by-step explanation:
Simplifying
3 = -3y + -15
Reorder the terms:
3 = -15 + -3y
Solving
3 = -15 + -3y
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '3y' to each side of the equation.
3 + 3y = -15 + -3y + 3y
Combine like terms: -3y + 3y = 0
3 + 3y = -15 + 0
3 + 3y = -15
Add '-3' to each side of the equation.
3 + -3 + 3y = -15 + -3
Combine like terms: 3 + -3 = 0
0 + 3y = -15 + -3
3y = -15 + -3
Combine like terms: -15 + -3 = -18
3y = -18
Divide each side by '3'.
y = -6
Simplifying
y = -6
