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ziro4ka [17]
4 years ago
14

What 12r+5s-7t+11r+9s-4r

Mathematics
1 answer:
AysviL [449]4 years ago
4 0
Add the like terms.
12r+11r-4r= 19r
5s+9s=14s
-7t=-7t
19r+14s-7t
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If you don't understand some steps, comment it for me please.

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