Q: What number must be added to -15 to get 11?

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4x - 4 = 3x + 114x - 3x = 11 + 4x = 15

22 out of 30 ... since 30 is twice as large as 15, the answer must be half of 22, or 11. Put another way, 22 and 30 are twice as large as 11 and 15. 11/15 = .733 = 22/30 If you like my answer, please recommend me as a contributor.

11 is prime.

15 x 11 (15 times 11) = 165To work this out...There is an easy way of multiplying by 11.Add the digits of your other number (i.e. 15 = 6)Put this in the middle of the number (i.e. put it in the middle of 15, = 165)If the digits added together is a 2 digit number, then you put the units in the middle, and add the 10s to the 100s column.e.g. 69 x 116+9 = 15put the 5 in the middle: 659Add the 1 to the hundred's: 6+1 = 7So the answer is 759

When 3 is added 5 times to a number the result is 15 if the number is 0, otherwise this is not true. However, the amount added to the number is always 15. Let's say the variable x is our number and y is the result, then x+3+3+3+3+3=y. You can add all the 3's together now. So you have x+15=y. Now if the starting number is 0, you have 15=y, so the result is 15.

Related questions

-17

24 this is how it breaks down -15 + x = 9 => x= 9 + 15 => x= 24

15 for example, but also any other number multiplied by 11 to which 4 is added. eg 11x12+4 = 136.

15 is a composite number. 11 is a prime number.

15

it is the number such that 15 added to negative 15=0

4x - 4 = 3x + 114x - 3x = 11 + 4x = 15

write the answer on the blank what number is 11 more than 15?______

22 out of 30 ... since 30 is twice as large as 15, the answer must be half of 22, or 11. Put another way, 22 and 30 are twice as large as 11 and 15. 11/15 = .733 = 22/30 If you like my answer, please recommend me as a contributor.

Any rational number does.

11.. 7+4=11 and 15-4=11

11 is prime.