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notsponge [240]
3 years ago
9

Find two numbers with a sum of 14 and a difference of 4:

Mathematics
2 answers:
erica [24]3 years ago
8 0
X=9 and y=5. Solved using substitution.

lara [203]3 years ago
4 0

Answer:

First number --> x

Second number --> y

x + y = 14 --> x = 14 - y

x - y = 4

so

14 - y - y = 4

14 - 2y = 4

2y = 10

y = 5

so

x = 14 -5

x = 9

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Easy way, visual

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Algebra way
Let x=volume of 50% needed.
Then
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