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01-11-2021
Mathematics

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nadianadunia1905 nadianadunia1905

01-11-2021

Answer:

Hello!!

For question twelve, [tex]7z+10-z=8z-2(z-5)[/tex] is an identity.

For question thirteen, [tex]7y+9=7y-6[/tex] has no solution.

Hope this helps!!

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