Question

please help me out please​

Answer 1

Answer:

7(2-z)+5(z+3)/1-4z=3/5

14-7z+5z+15/1-4z=3/5

5(14-7z+5z+15)=3(1-4z)

70-35z+25z+75=3-12z

145-10z=3-12z

145-3=-12z+10z

142=-2z

-2z=142

-z=142/2

-z=71

z=-71

Answer 2

5[7(2-z)+5(z+3) = 3(1-4z)

5(14-7z)+5z+15= 3+12z

70-35z+5z+15=3+12z

40z-12z= 15-3-70

38z = 12-70

38z= 68

z=38. 19

----------= --------

68. 34