Asked by Danielle
Bob has 15 more cards than Alan. Colun gives Bib 25 cards. Bob now has 3 times as many as Alan. How nany has Alan got?
Answers
Answered by
PsyDAG
B = A + 15
B + 25 = 3A
Substitute A+15 for B in the second equation and solve for A.
B + 25 = 3A
Substitute A+15 for B in the second equation and solve for A.
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