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2 years ago

*PLEASE HELP ME !!! , READ ATTACHMENTS I WILL GIVE BRAINLIEST !!!

Mathematics

1 answer:

Sladkaya [172]2 years ago

3 0

Answer:

Hello!!

For question twelve, $7z+10-z=8z-2(z-5)$ is an identity.

For question thirteen, $7y+9=7y-6$ has no solution.

Hope this helps!!

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