ElizaAByers
ElizaAByers
09-11-2020
Mathematics
contestada
4r + 6r - 13 = 7r + 5
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riley1829
riley1829
09-11-2020
10r-13=7r+5
-7r -7r
3r-13=5
+13 +13
3r=18
/3 /3
r=6
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