1) 9.4x – 7.8x + 0.52 = 1

2) 3 – 1/2x = 5

3) 8целых 5/7 – x = 4целых 9/14

Спасибо!

9.4х-7.8х=1-0.529.4х-7.8х=0.481.6х=0.48х=0.48÷1.6х=0.33-1/2х=51/2х=3-50,5х=-2х= -48 5/7-х= 4 9/14х= 8 5/7- 4 9/14х = 8 10/14- 4 9/14х = 4 1/14