You will have 3(x + 5) or 3x + 15
The sum of 45 and 15 equals 60. 15 x 3 equals 45.
If x + 7 = 15, then 15 - 7 = x, therefore x = 8.If x = 8, then 4x is equal to 4 x 8 = 32.
20+(-15)=5You just took 15 from 20. When adding negative numbers to positive ones, you move LEFTWARD on the number line toward 0 (because that's where the negative numbers are).As I understand the question:If 20 and a number (x) = a negative 15 (-15), then you can write it out as an equation to get the answer:20 + x = -15 is the equation (x represents the number)20 - 20 + x = -15 - (-20) (what you do to one side you must do to the other)x = -35Therefore, the sum of 20 and -35 is -15.
16
(x + 15)
It is 15 + 1x.
Let the number be x and if 9+2x = 15 then x equals 3
x+15 if you are trying to find the value of x it would be x+15 x=-15
(15 x 1) + (15 x 3) = 15 x 4 = 60
Well, honey, if the sum of a number and 7 is 15, then all you gotta do is subtract 7 from 15. That'll give you the number, which is 8. Math doesn't have to be harder than picking out a good bottle of wine, darling.
3(z+15)
You will have 3(x + 5) or 3x + 15
The sum of 45 and 15 equals 60. 15 x 3 equals 45.
If x + 7 = 15, then 15 - 7 = x, therefore x = 8.If x = 8, then 4x is equal to 4 x 8 = 32.
19
Le the "number" be x. The sum is x + 6.