Question

5(8y-1)-7(4y+1)+8(7-4y)=19

Answer 1

5(8y-1)-7(4y+1)+8(7-4y)=19

5*8у + 5 * (-1)-7*4у-7* 1+ 8*7+ 8*(-4у)=19

40у -5 -28у-7+56-32у = 19

40у - 28у-32у=19 +5+7-56

-20у = -25

20у= 25

4у=5

у=54

у=1,25