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Irina18 [472]
3 years ago
7

What numbers have a sum of 20 and the difference is 4

Mathematics
2 answers:
kvv77 [185]3 years ago
8 0

Answer:

<u>The</u><u> </u><u>numbers</u><u> </u><u>are</u><u> </u><u>1</u><u>2</u><u> </u><u>and</u><u> </u><u>8</u>

Step-by-step explanation:

let the numbers be x and y :

x + y = 20 -  -  - (a) \\ x - y = 4 -  -  - (b)

add (a) and (b):

2x + 0y = 24 \\ 2x = 24 \\ x = 12

find y:

x + y = 20 \\ 12 + y = 20 \\ y = 20 - 12 \\ y = 8

balu736 [363]3 years ago
6 0

Answer:

16 and 2

Step-by-step explanation:

I'm not sure honestly if this is correct, but I hope this helps.

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Answer:

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In substitution rule we substitute  different  variable in such a way that it can simplify the question.

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Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

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- Find the difference of 8x and twice the sum<br>of x and 7. Write your answer in simplest<br>form.​
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Step-by-step explanation:

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