msangeleyes6363 msangeleyes6363

Today at 9:29 AM
Mathematics

Answered

7k+4l=20 and -8k+2l=10
What is the value of k?

Answer :

anchitam9 anchitam9

Today at 9:35 AM

7k+4l=20
(-8k+2l=10)-1
8k-4l=-10
+
7k+4l=20
15k+0=10
10/15= 2/3
k=2/3

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