Question

(13/21) *4 x (13/21)*-5=(13/21)*2x+1​

Answer 1

Answer:

Step-by-step explanation:

(13/21) *4 x (13/21)*-5

=(13/21).4-5

Answer 2

Answer:

put 13/21=k

4k x -5k = 2kx + k

-20k-k = 2kx

21k = 2kx

21 x 13/21 = 2 x 13/21 × x

13x 21= 26x

x = 10.5