Answer:
y=2
Step-by-step explanation:
1/3(y+7)=3(y-1)
1) Distribute 1/3 to y+7, and distribute 3 to y-1:
1/3y+7/3=3y-3
2) Add 3 to both sides:
1/3y+16/3=3y
3) Subtract 1/3y from both sides:
16/3=8/3y
4) Multiply both sides by the reciprocal of 8/3: (3/8)
y= 48/24
5) Simplify:
y=2
