Question

1) х+у=4 2) 3х+у=1 3) 2х+у=5 Я не поняла тему, помогите плиз :(

Answer 1

Ответ:

смотри на фото.........

Answer 2

Solving the Equations

To solve the system of equations: 1) x + y = 4 2) 3x + y = 1 3) 2x + y = 5

We can use the method of substitution or elimination to find the values of x and y.

Using Substitution Method

We can start by solving equation (1) for y: 1) y = 4 - x

Then substitute this value of y into equations (2) and (3): 2) 3x + (4 - x) = 1 3) 2x + (4 - x) = 5

Solving these equations will give us the values of x and y.

Let's proceed with solving these equations.