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3 years ago

The sum of two numbers is 20 and their difference is 8

Mathematics

2 answers:

KonstantinChe [14]3 years ago

4 0

14 and 6.
Because you half the 20 (10) and then take away 4 because it is half of 8.

8090 [49]3 years ago

3 0

Answer:

14 and 6

Step-by-step explanation:

The sum of the two numbers can be represented by x + y.

The difference of the two numbers can be represented by x-y.

Add the two equations.

(x+y)+(x-y)=20+8

Remove the parentheses and simplify.

2x=28

Divide both sides by 2 to get x=14.

Substitute 14 into the equation x+y=20 to get 14+y=20.

Subtract 14 from both sides to get y=6.

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