Question

Сумма чисел 10 , разность -3 . Найти эти числа. ​

Answer 1

Ответ: 3,5 ; 6,5

Объяснение:

{x + y = 10

{x - y = -3

Сложим уравнения:

2x = 7

x = 3,5 - 1 число

3,5 + y = 10

y = 10 - 3,5

y = 6,5 - 2 число

Answer 2

Sum and Difference of Two Numbers

To find the two numbers whose sum is 10 and difference is -3, we can set up a system of equations. Let's call the two numbers x and y.

1. The sum of the two numbers is 10: - x + y = 10

2. The difference between the two numbers is -3: - x - y = -3

To solve this system of equations, we can use the method of substitution or elimination. Let's use the method of elimination:

1. Add the two equations together to eliminate the y term: - (x + y) + (x - y) = 10 + (-3) - 2x = 7 - x = 7/2 = 3.5

2. Substitute the value of x back into one of the original equations to solve for y: - x + y = 10 - 3.5 + y = 10 - y = 10 - 3.5 = 6.5

Therefore, the two numbers are 3.5 and 6.5.