Ответ:
а) 3х-5(х+4)=-16
3х-5х-20=-16
-2х=4
х=4÷(-2)
х=-2
б) 3(2х-7)-8х=-3х+4
6х-21-8х=-3х+4
-2х+3х=4+21
х=25
в)16х-14=-46
16х=-46+14
16х=-32
х=-32÷16
г) 23х-18+х=18х+30
24х-18х=30+18
6х=48
х=48÷6
х=8
д)-2х-(х+5)=7х-10
-2х-х-5=7х-10
-3х-7х=-10+5
-10х=-5
х=-5÷-10
х=0,5
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Verified answer
Ответ:
а) 3х-5(х+4)=-16
3х-5х-20=-16
-2х=4
х=4÷(-2)
х=-2
б) 3(2х-7)-8х=-3х+4
6х-21-8х=-3х+4
-2х+3х=4+21
х=25
в)16х-14=-46
16х=-46+14
16х=-32
х=-32÷16
х=-2
г) 23х-18+х=18х+30
24х-18х=30+18
6х=48
х=48÷6
х=8
д)-2х-(х+5)=7х-10
-2х-х-5=7х-10
-3х-7х=-10+5
-10х=-5
х=-5÷-10
х=0,5