Question

Find \[c\] and \[d\] if \[5c-d=11\] and \[4c+3d=24\].

Options

• \[c=3,\ d=4\]

• \[c=4,\ d=3\]

• \[c=1,\ d=2\]

• \[c=2,\ d=1\]

Answer 1

From \[5c-d=11\], substitute \[d=5c-11\] into \[4c+3d=24\]. This gives \[c=3\], and then \[d=4\].