Answer:
y = -1/12
Step-by-step explanation:
4y+18=-8y+17
Add 8y to each side to get the variable on one side
4y+8y+18=-8y+8y+17
12y +18 = 17
Subtract 18 from each side to get the constant on the other side
12y +18-18 = 17-18
12y =-1
Divide each side by 12 to isolate the variable
12y/12 =-1/12
y = -1/12