Question

1073.• Розв’яжіть рівняння:
1) 8 (x – 1,4) = 0,56;
2) (4,6 – x) . 19 = 4,18;
3) (x – 7,3) . 3,2 = 12,16;
4) (51,32 + x) . 0,12 = 72;
зделайтє срочно спасибааааааааааааа

Answer 1

Ответ:

11) 8(x - 1.4) = 0.56

8x - 11.2 = 0.56

8x = 11.2 + 0.56

8x = 11.76

x = 11.76/8

x = 1.47

2) (4.6 - x) * 19 = 4.18

87.4 - 19x = 4.18

-19x = 4.18 - 87.4

-19x = -83.22

x = (-83.22)/(-19)

x = 4.38

3) (x - 7.3) * 3.2 = 12.16

3.2x - 23.36 = 12.16

3.2x = 12.16 + 23.36

3.2x = 35.52

x = 35.52/3.2

x = 11.1

4)(51.32 + x) * 0.12 = 72

6.16 + 0.12x = 72

0.12x = 65.84

x = 65.84/0.12

x = 548.67