A+b=82 a:b=9,r=2 a=b*9+2 9b+2+b=82 10b=80 b=8 a=8*9+2=72+2=74 Sper ca asta sa te ajute! :) Avand in vedere ca aceasta este varianta pentru americani intrebarea ta ar trebui stearsa, pentru varianta in limba romana poti intra pe brainly.ro.Succes! ^^
3-7 is -4 so it becomes -4x=4 divide both sides by 4 to get -x=-1 a lot of teachers dont like that negative x so you can also divide by -1 again to make it x=1 hope it helps