Respuesta :

Plug 35 in for z. Multiply 4 and 35 to get 140 then divide by 7 to get 20
4z / 7              for z = 35

We substitute z = 35 in 4z/7

4z/7 = 4*35 / 7 = 4*5                          7 into 35 is 5.

= 4*5 = 20

= 20

I hope this explains it.
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