1)2х+9,8=13,6 2)10,36-3х=13,6 3)4,2х-6=3,66 4)19,5-0,3х=15,9 5)(7-0,2х)*1,4=7,56 6)(6,1х-13,2):1,7=3

Предыдущий
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вопрос

1) 2x + 9.8 = 13.6
2x = 13.6 - 9.8
2x = 3.8
x = 3.8 / 2
x = 1.9

2) 10.36 - 3x = 13.6
-3x = 13.6 - 10.36
-3x = 3.24
x = 3.24 / -3
x = -1.08

3) 4.2x - 6 = 3.66
4.2x = 3.66 + 6
4.2x = 9.66
x = 9.66 / 4.2
x = 2.3

4) 19.5 - 0.3x = 15.9
-0.3x = 15.9 - 19.5
-0.3x = -3.6
x = -3.6 / -0.3
x = 12

5) (7 - 0.2x) * 1.4 = 7.56
7 - 0.2x = 7.56 / 1.4
7 - 0.2x = 5.4
-0.2x = 5.4 - 7
-0.2x = -1.6
x = -1.6 / -0.2
x = 8

6) (6.1x - 13.2) / 1.7 = 3
6.1x - 13.2 = 1.7 * 3
6.1x - 13.2 = 5.1
6.1x = 5.1 + 13.2
6.1x = 18.3
x = 18.3 / 6.1
x = 3