Question

3 Решите уравнения: a) 17x-4x=195; б) 5х + 23x = 168; в) (3x + 10x) . 8 = 312. a) 7x+41x = 192; б) 40х-4х=540; в) (9x + 7x) - 6 = 288.​

Answer 1

a) 17x - 4x = 195

13x = 195

x = 195 / 13

x = 15

б) 5x + 23x = 168

28x = 168

x = 168 / 28

x = 6

в) (3x + 10x) * 8 = 312

(13x) * 8 = 312

104x = 312

x = 312 / 104

x = 3

a) 7x + 41x = 192

48x = 192

x = 192 / 48

x = 4

б) 40x - 4x = 540

36x = 540

x = 540 / 36

x = 15

в) (9x + 7x) - 6 = 288

16x - 6 = 288

16x = 288 + 6

16x = 294

x = 294 / 16

x = 18.375