464-(10+x)=440
=>10+x=464-440
=>10+x=24
=>x=24-10
=>x=14
va x=14
464-(10+x)=440
=>10+x=464-440
=>10+x=24
=>x=24-10
=>x=14
464-(10+x)=440
(10+x)=464-440
10+x=24
x=24-10
x=14
464 - ( 10 + x ) = 440
10 + x = 464 - 440
10 + x = 24
x = 24 - 10
x = 14
nha bn
464-(10+x)=440
10+x=464-440
10+x=24
x=24-10
x=14