fearfaad fearfaad

17-01-2020
Mathematics

contestada

can someone help me solve this? this is hard can someone tell me how to find the correct answer?

can someone help me solve this this is hard can someone tell me how to find the correct answer class=

Respuesta :

17-01-2020

Answer:

z=11

Step-by-step explanation:

(z-1)/10=(z+1)/12

cross multiple

12z-12=10z+10

2z=22

z=11

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