For a certain value of k, the system
3a + 4b = 7,
6a + 8b = k
has infinitely many solutions (a,b). What is k?
What is k?
Hello Guest!
\(3a + 4b = 7\ |\ \times 2\\ \ \\ 6a+8b=14 \\ \underline{6a + 8b = k}\ |\ subtract \)
\(0=14-k\ |\ +k\\ \color{blue}k=14\)
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