Z + 81 = 9z -7 help solve

2 answers:

6 0

Z + 81 = 9z - 7
-9z -9z

-8z + 81 = -7
-81 -81

-8z = -88

z = 11

5 0

8z-7=81
8z=88
z=11
Have a good day!
:0)

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