briannajazwest briannajazwest
  • 30-04-2021
  • Mathematics
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The sum of two numbers is 147. The difference of the two numbers is 25.
What are the two numbers? Show your work.

No links please The sum of two numbers is 147 The difference of the two numbers is 25 What are the two numbers Show your work class=

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debmc7
debmc7 debmc7
  • 30-04-2021
86 and 61.

x + y = 147
x - y = 25

I always found second setting that second equation up was hardest. How do I know which one comes first? You just keep them in the same order as the first math equation.

So let’s solve for x in terms of y:
x - y = 25
x = 25 + y

Then substitute that into your first equation:
x + y = 147
(25 + y) + y = 147
2y = 122
y = 61

x = 25 + y = 25 + 61 = 86
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