1) 20(x+2)=24x20x + 40 = 24x40 = 4xx = 10
2) 6(x+2)=8(x-2)6x + 12 = 8x - 1628 = 2xx = 14
3) 15(22-x)=13(22+x)330 - 15x = 286 + 13x44 = 28xx = 1.57
4) 36x=48(x-2)36x = 48x - 9696 = 12xx = 8
5) 60x-25x=42035x = 420x = 12
Ответ: x = 10, x = 14, x = 1.57, x = 8, x = 12.
1) 20(x+2)=24x
20x + 40 = 24x
40 = 4x
x = 10
2) 6(x+2)=8(x-2)
6x + 12 = 8x - 16
28 = 2x
x = 14
3) 15(22-x)=13(22+x)
330 - 15x = 286 + 13x
44 = 28x
x = 1.57
4) 36x=48(x-2)
36x = 48x - 96
96 = 12x
x = 8
5) 60x-25x=420
35x = 420
x = 12
Ответ: x = 10, x = 14, x = 1.57, x = 8, x = 12.