Question

Решением уравнения 2х+3у=5 является пара чисел: (1; 1) (-1; 1) (1; -1) (-1; -1)

Answer 1

Ответ:

(1; 1)

Объяснение:

Подставим на х=1 и на у=1

Тогда:2х+3y=5 следует отсюда что 2×1+3×1=5

Answer 2

To check if a pair of numbers is a solution to the equation 2x + 3y = 5, you simply need to substitute the values of x and y into the equation and see if it holds true.

Let's check each pair of numbers:

1. (x=1, y=1): 2(1) + 3(1) = 2 + 3 = 5 ✔️

2. (x=-1, y=1): 2(-1) + 3(1) = -2 + 3 = 1 ❌ (The equation should equal 5, not 1)

3. (x=1, y=-1): 2(1) + 3(-1) = 2 - 3 = -1 ❌ (The equation should equal 5, not -1)

4. (x=-1, y=-1): 2(-1) + 3(-1) = -2 - 3 = -5 ❌ (The equation should equal 5, not -5)

So, the only pair of numbers that is a solution to the equation 2x + 3y = 5 is (1; 1). The other pairs do not satisfy the equation.