Question 227678
"Four years ago, Katie was twice as old as Anne was then" ___ K - 4 = 2(A - 4) ___ K - 4 = 2A - 8


"In 6 years, Anne will be the same age that Katie is now" ___ A + 6 = K


substituting ___ (A + 6) - 4 = 2A - 8 ___ 10 = A


substituting ___ (10) + 6 = K ___ 16 = K