Answer:
z= -134 x=-17
Step-by-step explanation:
7x-15=9x+19
+15 +15
7x=9x+34
-9x
-2x=34
÷-2
x=-17
(find z)
7(-17)-15=
-119-15=-134
(Not sure if this correct but i thought i would give it a shot)
