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Fanicabarosanu155
a fost răspuns

rezolvati in multimea br nat ecuatiile 7(x-2)+9=44 8(x+3)+7=71 5(2×-11)=52 6(3×+4)+15=201 17(2×+3)-25=366

Răspuns :

CosmoteRo
7x-14+9=44
7x=44-9+14
7x=49
x=7

8x+24+7=71
8x=71-7-24
8x=40
x=5

10x-55=52
10x=52+55
10x=107
x=107:10=10,7

18x+24+15=201
18x=201-15-24
18x=162
x=9

34x+51-25=366
34x=366+25-51
34x=340
x=10

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