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Mathematics
Brylee Howell
16 April, 04:35
7k+4l=20 and - 8k+2l=10
What is the value of k?
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Janiah Quinn
16 April, 05:26
0
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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