Răspuns :
6x-534=828 => 6x=828+534 => 6x=1362 = > x=1362:6=> x=227
3x+10x60<= 639
3x<=639-600
3x<=39
x<=13
x apartine multimii { 0,1,2,3,4,5,6,7,8,9,10,11,12,13}
3x+10x60<= 639
3x<=639-600
3x<=39
x<=13
x apartine multimii { 0,1,2,3,4,5,6,7,8,9,10,11,12,13}
a)6x-534=828
6x=1362
x=1362/6
x=227
b)3x+600<sau=639
3x<sau=39
x<sau=39/3
x<sau=13
6x=1362
x=1362/6
x=227
b)3x+600<sau=639
3x<sau=39
x<sau=39/3
x<sau=13