Question 1036131
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Carina is 5 years older than Megan. {{{highlight(cross(There))}}} Three years ago, she was twice as old as Megan. How old are they now?
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The right way to start is this system:

c = m + 5,      (1)
c-3 = 2(m-3).   (2)

Substitute expression c = m+5 from (1) into (2) and get a single equation for m. Then solve it.
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