The number is 9, because 9 + 2/3(9) is 15, so 9 + 6 = 15 because 2/3 of 9 is 6.
To find the number that, when added to -15, gives a sum of 0, you can set up the equation: -15 + x = 0. Solving for x gives you x = 15. Therefore, the number you need to add to -15 is 15.
x+15
Let the number be represented as ( x ). The expression for the sum of 10 times the number and 15 added to 11 times the same number can be written as ( 10x + (11x + 15) ). Simplifying this gives ( 21x + 15 ). Therefore, the sum is ( 21x + 15 ).
2*(15 + N)
Their sum is 15.
27
To find the number that, when added to -15, gives a sum of 0, you can set up the equation: -15 + x = 0. Solving for x gives you x = 15. Therefore, the number you need to add to -15 is 15.
The sum is 328.
x+15
N + 15
Let the number be represented as ( x ). The expression for the sum of 10 times the number and 15 added to 11 times the same number can be written as ( 10x + (11x + 15) ). Simplifying this gives ( 21x + 15 ). Therefore, the sum is ( 21x + 15 ).
five times the sum of a number and 8 is -15.
2*(15 + N)
Their sum is 15.
x+15 if you are trying to find the value of x it would be x+15 x=-15
(x + 15)
15