1) -5х+45=67 -5х=67-45 -5х=22 х=22:(-5) х=-4.4
2) -3х+31=43 -3х=12 х=12:(-3) х=-4
3) 6х+12=4х-47 6х+4х=47-1210х=35
Х=35:10
Х=3.5
1) -5х+45=67
-5х=67-45
-5х=22
х=22:(-5)
х=-4.4
2) -3х+31=43
-3х=12
х=12:(-3)
х=-4
3) 6х+12=4х-47
6х+4х=47-12
10х=35
Х=35:10
Х=3.5