2x+9,8=13,16 10,36-3x=5,86 4,2x-6=3,66 19,5-0,3x=15,9

2x+9,8=13,16 2х=13,16-9,82х=3,36х=3,36 :2х=1,6810,36-3x=5,86 3х=10,36-5,863х=4,5х=4,5 :3х=1,54,2x-6=3,66 4,2х=3,66+64,2х=9,66х=9,66 :4,2х=2,319,5-0,3x=15,90,3х=19,5-15,90,3х=3,6х=3,6: 0,3х=12