Решите уравнение 24/х+2=1/5, 5/6=15/2х-3, 2/5=6/х+3

Question

Решите уравнение 24/х+2=1/5, 5/6=15/2х-3,
2/5=6/х+3

Answer 1

1) 24/(x+2) = 1/5
24*5 = x + 2
120 = x + 2
120 - 2 = x
x = 118

2) 5/6 = 15/(2x-3)
5(2x - 3) = 15*6
10x - 15 = 90
10x = 90 + 15
10x = 105
x = 10,5

3) 2/5 = 6/(x+3)
2(x+3) = 6*5
2x + 6 = 30
2x = 30 - 6
2x = 24
x = 12