Răspuns :
1. (46-c:3)×2=68
46-c:3=68:2=34
c:3=46-34=12
c=12×3
c=36
a×8+124=300
a×8=300-124=176
a=176÷8
a=22
1 000-63÷b=991
63÷b=1 000-991=9
b=63÷9
b=7
46-c;3=68;2
46-c;3=34
c;3=46-34
c;3=12
c=12;3
c=4
a'8=300-124
a;8=176
a=176'8
a= 1408
63;b=1000-991
63;b=9
b=63;9
b=7
272;4=68 sfertul
a'2=68
a=68;2
a=34 numarul
46-c;3=34
c;3=46-34
c;3=12
c=12;3
c=4
a'8=300-124
a;8=176
a=176'8
a= 1408
63;b=1000-991
63;b=9
b=63;9
b=7
272;4=68 sfertul
a'2=68
a=68;2
a=34 numarul