-x*2=358-6200
-x*2=-5842
-x=-5843/2
x=2921
1,845÷2,3+4,5•(8,6•0,25-(2 61/90 -1 1/12)) •(0,6+1,34) = 369/200÷23/10+9/2•(2,15-(241/90-13/12)) •1,94 = 369/200•10/23+9/2•(43/20-287/180)•97/50 = 369/20•1/23+9/2•5/9•97/50 = 369/460+1/2•97/10 = 369/460+97/20 = 5 15/23
1.
5348+726+17629=23703
1) 5348+726=6074
2) 6074+17629=23703
2.
138548+629+15238=154 415
1) 138 548 + 628=139 177
2) 139 177 + 15 238 = 154 415
3.
82363+2747+684=85 804
1) 82 363+2747= 85 110
2) 85 110 + 694 = 85 804
<span>15,5:(-5)-3 5/6x+7,1+4x=3,1-15/6x+7.1+4x=10.2-1.5x</span>