Ma7ggiebearonya Ma7ggiebearonya

01-10-2016
Mathematics

Answered

Which has an identity

A8 - (5x 2) = -5x - 6
B7z 10 - 2 = 8z - 2 (z - 5)
C8m - 4 = 5m 8 - m
D6y 5 = 6y - 5?

Verified Answer :

nobillionaireNobley nobillionaireNobley

09-10-2016

7z + 10 - z = 8z - 2(z - 5)
6z + 10 = 8z - 2z + 10
6z + 10 = 6z + 10
0 = 0

Therefore, option b has an identity.

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