Solve 5 (y - 4) = 7 (2y + 1)

5 (y-4) = 7 (2y+1) use the distributive property: 5y-20=14y+7 then isolate one variable: 5y-20 (-7) = 14y+7 (-7) which is: 5y-13=14y next subtract 5y from 14y which gives you: - 13=9y the last step is to divide each side by 9, isolating y. your answer will be y=-1.4

5y-20=14y+7

5y-20+20=14y+7+20

5y-14y=14y + 27 - 14y

9y=27

Divide both by - 9

Y=-3