Question

5) 6(3 +5y) - (2 + 7y) <5(4 + 3y);
6) 4(3y - 1)-3(y - 1) > 2(3+y).​

Answer 1

Ответ:

5) 6(3+5y)-(2+7y)<5(4+3y)

18+30y-2-7y<20+15y

30y-7y-15y< -18+2+20

8y<4

y< 4/8

4(3y-1)-3(y-1)>2(3+y)

12y-4-3y+3>6+2y

12y-3y-2y>4-3+6

7y>7

y>1