Answer to Question #23809 in Abstract Algebra for Amilyah
X = R,
R - 10 = 3(X - 22).
Let's solve it. Substituting the first equation into the second one we obtain:
R - 10 = 3(R - 22) ==>
R - 10 = 3R - 66 ==>
56 = 2R ==>
R = 28.
Therefore, Xuxian and Rachel had 28 marbles each.
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