Ma ajutati la 3 exerciti ? Va rog ajutati-ma !!
1) Stiind ca x+y+13=24 , determinati 19+2×y+2×x .
2) Stiind ca 2x+2×y+45=59 , determinati 4×y+4×x+32 .
3) Stiind ca x+3×y+18=54 , determinati 6×y+89+2×x .

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Răspunsuri

2014-10-01T23:32:25+03:00
X+y+13=24
scadem 13
x+y=11
19+(2*y) + 2x
19+2(x+y)=19+2*11
19+22=41