Question

tìm stn x : 

a,2x + 3x = 1505

b,5x - x = 4088

Answer 1

a/   2x + 3x = 1505

    \(\Rightarrow\)5x = 1505

    \(\Rightarrow\)x = 1505 : 5 = 301

  Vậy x = 301

b/     5x - x = 4088

    \(\Rightarrow\)4x = 4088

    \(\Rightarrow\)x = 4088 : 4 = 1022

Vậy x = 1022

Answer 2

a) 2x + 3x = 1505

=> 5x = 1505

x = 1505 : 5

x = 301

b) 5x - x = 4088

=> 4x = 4088

x = 4088 : 4

x = 1022

Answer 3

Bạn click vào câu hỏi tương tự ấy

Answer 4

2x + 3x = 1505

x . ( 2 + 3 ) = 1505

x . 5 = 1505

x = 1505 : 5

x = 301

5x - x = 4088

x . ( 5 - 1 ) = 4088

x . 4 = 4088 

x = 4088 : 4 

x = 1022

Answer 5

a,2x + 3x = 1505

=> 5x=1505

=> x= 1505:5

=> x=301

b,5x-x=4088

=> 4x=4088

=> x=4088:4

=> x=1022

Answer 6

a) 2x+3x=1505

(2+3)x=1505

5x=1505

x=1505:5

x=501

b) 5x-x=4088

4x=4088

x=4088:4

x=1022