Question

Решите уравнения :
3х-10=2+6(5+4х)
х-1+(х+2)=-4(-5-х)-5
-2•х+1-3(х-4)=4(3-х)+4

Answer 1

1)3х-10=2+30+24х
3х-24х=2+30+10
-21х=42
х=-2
2)х-1+х+2=20+4х+4
х+х-4х=20+4+1-2
-2х=23
х=-11,5
3)-2х+1-3х+12=12-4х+4
4х-2х-3х=12+4+1-12
-х=5
х=-5