Question

1) 4(3-x)-11=7(2x-5)

 

2)  0.9(4у-20)=0,5(3у-4)+4,4

Answer 1

1
12-4x-11-14x+35=0
18x=36
x=2
2
3,6y-18-1,5y+2-4,4=0
2,1y=-20,4
y=-9 5/7