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The sum of two numbers is 30 and their difference is 3. Find the numbers.​

Answer 1

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The sum of two numbers is 30, and their difference is six. What are the two numbers?

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Mark Lane

, Self Employed Tutor and Writer (2002-present)

Answered Dec 23, 2018

Originally Answered: The sum of the two numbers is 30, and their difference is six. What are the two numbers?

Let us call each number x and y.

Ok, x+ y= 30

And difference is 6.

Assuming no difference between variables, x = 18 and y= 12. These total 30.

And 18 - 12 = 6, which satisfies the second part of the question.

Simple way to check:

You know x+y = 30.you know difference is six.

So, divide 30 by 2 . That gives you 15 for x, 15 for y.

Now, you have difference of six, divide by two, that equals 3.

NOw, add 3 to 15 (say for x) that's 18.

NOw, minus 3 from 15 (for y), that's 12

Answer 2

x=16.5 & y=13.5

Step-by-step explanation:

U know x+y=30

u also know difference is 3,

so, divided 30 by 2 that gives you 15 for x,

15 for y

now you have difference between 3 divide by 2

that 1.5 now 1.5 add to for x that's 16.5 & minus 1.5 from 15 for y that 13.5 .