10-7x=7-x t+6,8=9t+10 1+2,6z=6+3z 2,5z-3=z-4,5 3x+5=0,5x+10 - вопрос №1077689101266325345350510263285952 от diarryfokks 02.01.2021 19:42

Question

Алгебра: 10-7x=7-x t+6,8=9t+10 1+2,6z=6+3z 2,5z-3=z-4,5 3x+5=0,5x+10 2,6+2x=1,9x+6,6

diarryfokks · Answer

10-7х=7-х t+6.8=9t+10 1+2.6z=6+3z 2.5z-3=z-4.5 3х+5=0.5х+10
-7х+х=7-10 t-9t=10-6.8 2.6z-3z=6-1 2.5z-z=-4.5+3 3х-0.5х=10-5
-6х=-3 -8t=3.2 -0.4z=5 1.5z=-1.5 2.5х=5
х=-3:(-6) t=3.2:(-8) z=5:(-0.4) z=1.5:(-1.5) х=5:2.5
х=0.5 t=-0.4 z=-12.5 z=-1 х=2

2.6+2х=1.9х+6.6
2х-1.9х=6.6-2.6
0.1х=4
х=4:0.1
х=40