Asked by tom

sally and marta had the same number of postards. after sally sold 18 postards, marta had 4 times as many as sally. how many ostcards did eeach girl have to begin with

Answers

Answered by Henry





Sally has X postcards.
Marta has X postcards.

X = 4(X-18)
Solve for X.



























Answered by aleena
24
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