2 years ago

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

Mathematics

1 answer:

Nana76 [90]2 years ago

7 0

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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