Решите уравнение:
1. x+(-3/4) = - 2, 25;
2. х- 1 2/5 = – 20;
3. — 3, 78 -x = 21;
4. — 5, 65 •x = 23 - 26, 8;
5. x : 5/6 = – 13;
6. — 16:х= 10/13
помогите!!!
1. x+(-3/4) = - 2, 25;
2. х- 1 2/5 = – 20;
3. — 3, 78 -x = 21;
4. — 5, 65 •x = 23 - 26, 8;
5. x : 5/6 = – 13;
6. — 16:х= 10/13
помогите!!!
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Answers & Comments
Пошаговое объяснение:
1)x = -2,25 + 0,75
x = -1,5
2) x= 1,4 - 20
x= -18,6
3)-x = 21 + 3,78
-x= 24,78
4) -5,65x= -3,8
x= 3,8:5,65 = 380:565
x= 380/565 = 76/113
5) x : 5/6 = -13
x = -13/1•5/6 = -65/6 = -10 5/6
6) -16:x=10/13
x= -16/1 • 13/10 = - 8/1•13/5 = -104/5
x= -20 4/5