8z-5=3(z+19)-7
8z – 5 = 3z + 57 – 7
8z – 3z = – 7 + 57 + 5
5z = 55
z = 11
6-(9x+5)=39-10x
6 – 9x – 5 = 39 – 10x
– 9x + 10x = 39 + 5 – 6
x = 38
8z-5=3(z+19)-7
8z – 5 = 3z + 57 – 7
8z – 3z = – 7 + 57 + 5
5z = 55
z = 11
6-(9x+5)=39-10x
6 – 9x – 5 = 39 – 10x
– 9x + 10x = 39 + 5 – 6
x = 38