👤

[3+(x-5)×7]:2=19 help.

Răspuns :

[3+(x-5)x7]:2=19/x2
3+(x-5)x7=38/-3
(x-5)x7=35/:7
x-5=5/+5
x=10
[3+(x-5)•7]%2=19/•2
3+(x-5)•7=38/-3
x-5•7=35/%7
x-5=5/+5
x=10