Пошаговое объяснение:
1) х*(-3 5/17)=28
х=28 :-3 5/17=28 : -56/17=28* - 17/56= -17/2= 8 1/2
2) 3,2х=-1 1/15
х=-16/5 :3,2=-3,2 : 3,2=-1
3) 1 7/8 *х= -1 -(3/4)²
15/8 х= -1 -9/16
15/8х=-25/16
х=-25/16 : 15/8= 25/16 * 8/15=-5/6
4) 5,6х=-70
х=-70: 5,6=-12,5
5) -0,1х=-0,23
х=-0,23:-0,1=2,3
6) -3/5*х=9/10
х=9/10: -3/5=9/10 * -5/3=-3/2=- 1 1/2
7) 5/9*х=-1 13/27
х=-40/27 : 5/9=-40/27 * 9/5=-8/3=-2 2/3
8) -0,01х=4,4
х=4,4: -0,01=440
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Пошаговое объяснение:
1) х*(-3 5/17)=28
х=28 :-3 5/17=28 : -56/17=28* - 17/56= -17/2= 8 1/2
2) 3,2х=-1 1/15
х=-16/5 :3,2=-3,2 : 3,2=-1
3) 1 7/8 *х= -1 -(3/4)²
15/8 х= -1 -9/16
15/8х=-25/16
х=-25/16 : 15/8= 25/16 * 8/15=-5/6
4) 5,6х=-70
х=-70: 5,6=-12,5
5) -0,1х=-0,23
х=-0,23:-0,1=2,3
6) -3/5*х=9/10
х=9/10: -3/5=9/10 * -5/3=-3/2=- 1 1/2
7) 5/9*х=-1 13/27
х=-40/27 : 5/9=-40/27 * 9/5=-8/3=-2 2/3
8) -0,01х=4,4
х=4,4: -0,01=440