1) 9.4x – 7.8x + 0.52 = 1

2) 3 – 1/2x = 5

3) 8целых 5/7 – x = 4целых 9/14

9.4х-7.8х=1-0.52
9.4х-7.8х=0.48
1.6х=0.48
х=0.48÷1.6
х=0.3

3-1/2х=5
1/2х=3-5
0,5х=-2
х= -4

8 5/7-х= 4 9/14
х= 8 5/7- 4 9/14
х = 8 10/14- 4 9/14
х = 4 1/14

1)1.6х=0.48
х=0.48:1.6
х=0.3
2)-1/2х=-2
х=4
3)х=4целых1/14