Пошаговое объяснение:
1)-9*(2×-7)+17*(×-1)=0
-18х+63+17х-17=0
-18х+17х=17-63
-х=-46
Х=46
2)-7*(2×-3)+5*(3×-2)=0
-14х+21+15х-10=0
-14х+15х=10-21
Х=-11
3)5 (×+4)=9×+12
5х+20=9х+12
5х-9х=12-20
-4х=-8
Х=-8:(-4)
Х=2
4)8-5 (4-3×)=18
8-20+15х=18
15х=18+20-8
15х=30
Х=30:15
5)-8*(3×-2)+5*(5×-3)=0
-24х+16+25х-15=0
-24х+25х=15-16
Х=-1
6)5×+6-(3×-4)=×-3-(2×-4)
5х+6-3х+4=х-3-2х+4
5х-3х-х+2х=4-3-4-6
3х=-9
Х=-9:3
Х=-3
Пошаговое объяснение:
1)-9*(2×-7)+17*(×-1)=0
-18х+63+17х-17=0
-18х+17х=17-63
-х=-46
Х=46
2)-7*(2×-3)+5*(3×-2)=0
-14х+21+15х-10=0
-14х+15х=10-21
Х=-11
3)5 (×+4)=9×+12
5х+20=9х+12
5х-9х=12-20
-4х=-8
Х=-8:(-4)
Х=2
4)8-5 (4-3×)=18
8-20+15х=18
15х=18+20-8
15х=30
Х=30:15
Х=2
5)-8*(3×-2)+5*(5×-3)=0
-24х+16+25х-15=0
-24х+25х=15-16
Х=-1
6)5×+6-(3×-4)=×-3-(2×-4)
5х+6-3х+4=х-3-2х+4
5х-3х-х+2х=4-3-4-6
3х=-9
Х=-9:3
Х=-3