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24-09-2019
Mathematics

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the sum of two numbers is 84. The first is 9 more than 4 times the second. Find the numbers.

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24-09-2019

Answer:

69 and 15

Step-by-step explanation:

Second number=x

First number 4x+9

4x+9 +x = 84

5x+9=84

5x=75

x=15

15*4=60

60+9=69

69+15=84

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