64+36:(x*3-15)=70
36:(x*3-15)=70-64
36:(x*3-15)=6
(x*3-15)=36:6
(x*3-15)=6
х*3=6+15
х*3=21
х=21:3
х=7
124-24*(480:x-56)=28
24*(480:x-56)=124-28
24*(480:x-56)=96
(480:x-56)=96:24
(480:x-56)=4
480:х=4+56
480:х=60
х=480:60
х=8
64+36:(x*3-15)=70
36:(x*3-15)=70-64
36:(x*3-15)=6
(x*3-13)=36:6
(x*3-15)=6
x*3=6+15
x*3=21
x=21:3
x=7
Пр.64+36:(7*3-15)=70
