Question

the difference 20 and sum 0f 6

Answer 1

Answer:

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Answer 2

Answer:

I assume you mean the sum of two numbers is 20 and the difference is 6

x+y=20

x-y=6

Add y to both sides

x=y+6

substitute into first equation

y+6+y=20

2y+6=20

Subtract 6 from both sides

2y=14

y=7

Since x+y=20

x+7=20

x=13

To check

13+7=20

13-7=6

Step-by-step explanation:

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