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 :

ryeroo ryeroo
  • 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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