=-10
=-10
=4
=4
=10
=10
=-4
=-4
=-4
=10
=10
=-4
=-10
=-4
=-4
=-10
=4
=10
=10
=4
=4
=10
=4
=10
------------------------------------------------------------
4х+12=х-6 30-5х=4-4х -18х-6-х+8=15 -21х-42-х+8=-15
4х-х=-12-6 4х-5х=4-30 -19х=15+6-8 -22х=-15+42-8
3х=-18 -х=-26 -19х=13 -22х=19
х=-6 х=26 х=-13/19 х=-19/22
-------------------------------------------------------------------------------------
=-4 1/6+2 1/3=-4 1/6+2 2/6=-3 7/6+2 2/6=-1 5/6
=7839:(-1300)=-6 3/100
=-1 5/6-(-6 3/100)=-1 250/300+6 9/300=-1 250/300+5 309/300=4 9/300
=4 9/300-2 119/300=3 309/300-2 119/300=1 190/300=1 19/30