А) 4х-( 7х-2)=17 б) 5х+3=7х-5(2х+1)

Question

А) 4х-( 7х-2)=17
б) 5х+3=7х-5(2х+1)

Answer 1

А) 4х-7х+2=17
-3х=15
х=-5
б) 5х+3=7х-5(2х+1)
5х+3=7х-10х-5
5х-7х+10х=-5-3
8х=-8
х=-1

Answer 2

А) 4х-7х+2=17
-3х=15х
х=-5
б)5х+3=7х-10х-5
8х=-8
х=-1