0.6(х-2)+4.6=0.4(7+х)
0.6х-1.2+4.6=2.8+0.4х
0.6х-0.4х=2.8+1.2-4.6
0.2х=-0.6
х=-0.6:0.2
х=-3
1) 149.1-14.2=10.5
2)42-10.5=31.5
3)31.5×5.3=166.95
4)166.95+6.15=173.1
2√3-2х+2√3-х√3=2<span>√3-4
2</span>√3+2√3-2√3+4=2х+х<span>√3
2</span>√3+4=х(2+<span>√3)
х=(2</span>√3+4)/(2+<span>√3)
х=2</span>