Answer:
y = -2/3
Step-by-step explanation:
Shown in picture.
-0.571428
7y-2y(8y+1)=4
7y-2y(8y)+2y(1)=4
7y-16y+2y=4
-9y+2y=4
-7y=4
-7 -7
y=-0.571428
