Question

4х-1,6=6х-7,6
4,7х-1,8=3,2+2,2х

Answer 1

$4x - 6x = - 7.6 + 1.6 \\ - 2x = - 6 \\ x = 3 \\ \\ 4.7x - 2.2x = 3.2 + 1.8 \\ 2.5x = 5 \\ x = 2$