(5 2/9y+3 1/2)*3-7 2/3y если y 3 1/8; y=14

Question

(5 2/9y+3 1/2)*3-7 2/3y если y 3 1/8; y=14

Answer 1

47/9у*3 + 7/2*3-7 2/3y=47/3у-21/2-7 2/3y=15 2/3у-10 1/2-7 2/3y=8у -10 1/2

y=14    8*14 - 10,5= 101,5