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likoan [24]
2 years ago
7

The difference of two numbers is 9. The sum of the two numbers is 15. What are the two numbers?

Mathematics
1 answer:
slamgirl [31]2 years ago
5 0

Let numbers be a and b

  • a+b=15--(1)
  • a-b=9---(2)

Adding both

\\ \qquad\quad\sf\longmapsto 2a=24

\\ \qquad\quad\sf\longmapsto a=\dfrac{24}{2}

\\ \qquad\quad\sf\longmapsto a=12

  • Put value in eq(2)

\\ \qquad\quad\sf\longmapsto 12-b=9

\\ \qquad\quad\sf\longmapsto b=12-9

\\ \qquad\quad\sf\longmapsto b=3

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