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MariettaO [177]
4 years ago
5

Using substitution J-3k=3 j=-k+15

Mathematics
1 answer:
docker41 [41]4 years ago
7 0
j-3k=3\\
j=-k+15\\\\
-k+15-3k=3\\
-4k=-12\\
k=3\\\\
j=-3+15\\
j=12
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