Given equations a and b as 2/5x+y=12 and 5/2y-x=6 , respectively, which expression will eliminate the variable x?

  × B + A

Step-by-step explanation:

Given equations are x + y = 12 ---------(A)

and equation  y - x = 6 -------------(B)

To eliminate the variable x we will multiply equation A by  

and add it to equation B.

In other words, the expression that we will adopt to eliminate the variable x will be   × B + A

your question is incomplete, write all the numbers in the sequence that it tells you.  

step-by-step explanation: