Question

срочно помогите!!!!!!!!!!!

Answer 1

х*8=25+15
х*8=40
х=40/8
х=5

(43-39)*х=24
4*х=24
х=24/4
х=6

12/х+10=13
12/х=13-10
12/х=3
х=1/4
х=0,25.

Answer 2

x*8=25+15
x*8=40
x= 40: 8 = 5
(43-39)*х=24
4*х=24
х= 24:4= 6
12:х+10=13
12:х=13-10
12:х=3
х=12:3
х=4