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Tante

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1/5x + 4/5y + 2/5x - 1/5y=
1. 1 answer
2. 254 views
-(3x-2y) -(5x-4y)=
1. 1 answer
2. 484 views
92-(-64)=?-73-89=? -66-(-49)=? 846-749=? 697-(-697)=? -697-(-697)=? -697-697=? 89-97-(-78)=? -53-26-(-77)=? -42-(-81)-(-73)=?
1. 1 answer
2. 368 views