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Q: The sum of twice a number plus 13 is 75?

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2n+13

2n+13

4

4

13 and 26

If the number (count) of odd values to sum is odd, then the answer is odd.If the number (count) of odd values to sum is even, then the answer is even.

If you mean: (x+3)^2 = (x+2)^2 +13 Then the value of the number x works out as 4

2(8 + 5) = 2(13) = 26

Count how many of the numbers are odd. If an odd number of them are odd, then their sum is odd. If an even number of them are odd, then their sum is even.

the sum of 67 + 13 = 80

26

Let the number be x and so if x+13 = 75 then the value of x must be 62

to sum two numbers you add them together then to get twice that you multiply the sum by 2 e.g. if the two numbers are 5 and 8 the sum = 5 + 8 = 13 twice that is 13 x 2 = 26

The number is 4 (4+3) * (4+3) = 49 (4+2) * (4+2) = 36 49 - 36 = 13

[(x+3)^2] - [(x+2)^2] = 13 ==> 2x = 8 ==> x = 4. the number is 4!

31

13 + 14 = 27.

13 the answer is 13 13. Sum means add!

13

13

13

n + 13

No. 13/4 plus 61/4 = 8

(-8,1)

13 and 7