Răspunsuri

2014-03-31T17:27:28+03:00
5x+5+7,5=2x+2+16,02
5x+12.2=2x+18.02
3x=5.82
x=1.94

2014-03-31T17:30:59+03:00
5(x+1)+7,5=2(x+1)+16,02 <=> 5x+5+7,5=2x+2+16,02<=>5x-2x=2+16,02-5-7,5 <=>3x=5,25 <=> x=5,25:3 <=> x=1,75