Z-z/8=7/16 x+x/11=24/11 x+x/9=6 x/5+x/15=-2/3

Question

Z-z/8=7/16
x+x/11=24/11
x+x/9=6
x/5+x/15=-2/3

Answer 1

1) 7z/8=7/16
7z=7/2
x=1/2
2) 12x/11=24/11
12x=24
x=2
3) 10x/9=6
10x=54
x= 5,4
4) 4x/15= -2/3
4x= -10
x= -2,5