Asked by lewis
jake and sally had an equal amount of money at first.after jake bought a bag which cost $18, sally had thrice as much as jake. how much money had jake at first?
Answers
Answered by
R_scott
j = s
3(j - 18) = s
substituting ... 3j - 54 = j
3(j - 18) = s
substituting ... 3j - 54 = j
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