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5 Rezolvati in multimea nr naturle exuatiile 8(x+3)+7=71 , 5(2x-11)+17=52 ,6(3x+4)+15=201 ,17(2x+3)-25=366, 4(5x-12)-34=118 , 125-3(2x-1)=98 , 238-5(x-1)=193
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Răspuns :

Alinatudor479
8x+24+7=71 8x=40 x=5 10x-55+17=52  10x=90 x=9 18x+24+15=201 18x=162 x=9 34x+51-25=366 34x=391 x=11,5 20x-48-34=118  20x=200 x=10 125-6x+3=98      -6x=-128/(-1) x=21.33    238-5x+5=193 -5x=193-243 -5x=-50 /(-1) x=5

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