Question

Tìm x biết (2015 - x)  :29 + 32 = 100

Answer 1

( 2015 - x ) : 29 + 32 = 100

( 2015 - x ) : 29 = 100 - 32

( 2015 - x ) : 29 = 68

2015 - x = 68 x 29

2015 - x = 1972

x = 2015 - 1972

x = 43

L i k e nha các bạn !!!

Answer 2

(2015-x):26=100-32

(2015-x):26=68

2015-x=68x26

2015-x=1768

x=2015-1768

x=247
 

Answer 3

Ta co : 

(2015 - x):29+32=100

(2015-x):29       = 100 - 32

(2015-x):29       = 68

2015-x             = 68 . 29

2015-x             = 1972

x                      = 2015 - 1972

x                      =43