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marta [7]
3 years ago
10

John has three more marbles than Steve. If they have 25 marbles, how many marbles does each have?

Mathematics
2 answers:
love history [14]3 years ago
4 0

Let J be the number of marbles owned by John, and S the number of marbles owned by Steve.

John has three more marbles than Steve, so J = S + 3 \iff J - S = 3

They have 25 marbles, so J+S = 25

So, we have the following system:

\begin{cases} J - S = 3\\J + S = 25\end{cases}

Add the two equations side by side:

(J - S) + (J + S) = 3 + 25 \iff 2J = 28 \iff J = 14

Since John has three more marbles, we have

S = J - 3 = 14 - 3 = 11

Natalija [7]3 years ago
3 0

john has 14 steve has 11

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