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Nostrana [21]
3 years ago
6

Which equation is an identity?

Mathematics
1 answer:
spayn [35]3 years ago
3 0
7z + 10 - z = 8z - 2(z - 5)
7z + 10 - z = 8z - 2z + 10
6z + 10 = 6z + 10
6z - 6z = 10 - 10
0 = 0

Therefore, 7z + 10 - z = 8z - 2(z - 5)
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