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Gennadij [26K]
3 years ago
11

Find two numbers with a sum of 20 and a difference of 6.

Mathematics
2 answers:
KonstantinChe [14]3 years ago
7 0

Answer:

13 and 7

Step-by-step explanation:

x + y= 20 -----(1)

x - y= 6 --------(2)

From equation 1,

x= 20-y

To substitute in equation 2, We say:

(20-y) - y=6

20 - 2y = 6

-2y = 6-20

2y = 14

Therefore, y = 7

To find x,

We substitute y in equation 1

Therefore, x + 7= 20

x = 20-7

Therefore x = 13.

This means the two numbers with a sum of 20 and a difference of 6 =

13 and 7.

Alina [70]3 years ago
4 0

Answer:

7 and 13

Step-by-step explanation:

x+y=20

x-y=6

2x=26, x=13, 13+7=20, 13-7=6.

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