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Allushta [10]
3 years ago
10

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

Mathematics
2 answers:
Alla [95]3 years ago
6 0
Hello,

the answer is 5/2*A+B
Fofino [41]3 years ago
3 0

Answer:

 \frac{2}{5} × B + A

Step-by-step explanation:

Given equations are \frac{2}{5}x + y = 12 ---------(A)

and equation  \frac{5}{2}y - x = 6 -------------(B)

To eliminate the variable x we will multiply equation A by  \frac{5}{2}

and add it to equation B.

In other words, the expression that we will adopt to eliminate the variable x will be  \frac{2}{5} × B + A

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