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Mathematics, 30.11.2020 18:00 gabbysanchez5976

-Find the sum or difference 1. (5b-9) + (b+8)
2.(3m+5) - (6-5m)
3.(1-9z) + 3(z-2)
4.(7g-6) - (-3n-4)

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-Find the sum or difference 1. (5b-9) + (b+8)
2.(3m+5) - (6-5m)
3.(1-9z) + 3(z-2)
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