X - 14 = 3 (x - 22)
x - 14 = 3x - 66
3x - x =-14 + 66
2х=52
х=52:2
х=26
(17a-b)/(7a+8b) = -5
17a - b = -35a - 40b
52a = -39b
4a = -3b
a = -0,75b
(2a+3b)/(4a-5b) = (-1,5b+3b)/(-3b-5b) = 1,5b/(-8b) = -0,1875
4)
3451 : 17 = 3400:17 + 51:33 = 200+3 = 203
7744 : 11 = 7700 : 11 + 44:11 = 700 +4 = 704
5684 : 28 = 203
2842 : 14 = 200 + 3 = 203
X*(75:5)=30
x*15=30
x=30:15
x=2
47040÷14÷7÷32=15
1) 47040÷14=3360
2) 3360:7=480
3) 480:32=15