Question

[Uoc Mo Bac Si]

Bai 1 Tim x thuoc N biet 

a) 6x -5=613             b) 2436 chia x =12          c)(x-47)-115=0          d)315+(146-x)=401

Answer 1

[Diệp Băng Dao]

6x - 5 = 613

6x = 618

x = 103

2436 : x = 12

x = 203

( x - 47 ) - 115 = 0

x - 47 = 115

x = 162

315 + ( 146 - x ) = 401

146 - x = 86

x = 60

Answer 2

[bangtansonyondan]

a,6x-5=613

6x=613+5

6x=618

x=618:6

x=13

b, 2436:x=12

x=2436:12

x=203

c,(x-47)-115=0

x-47=115

x=115+47

x=162

d,315+(146-x)=401

146-x=86

x=60