Question

срочно!!!!!!! B-) :-D фотография

Answer 1

2.)  7(2х-1)+5(3х+2)=32
14х-7+15х+10-32=0
29х-29=0
29х=29
х=1

2.)  х^2+(5х-2)-(3х+1)=3х+х^2
х^2+5х-2-3х-1-3х-х^2=0
-х-3=0
-х=3
х=-3