Question

(x + y = 2 (x - y = 4

Answer 1

Відповідь на фото що ще писати сюди задовбали

Answer 2

You have a system of two linear equations with two variables, x and y:

1. x + y = 2
2. x - y = 4

You can solve this system of equations using various methods such as substitution, elimination, or matrix methods. I'll demonstrate solving it using the elimination method:

First, let's add the two equations together to eliminate one of the variables:

(x + y) + (x - y) = 2 + 4

This simplifies to:

2x = 6

Now, divide both sides by 2 to isolate x:

2x/2 = 6/2 x = 3

Now that we have found the value of x, we can substitute it back into one of the original equations to solve for y. Let's use the first equation:

x + y = 2 3 + y = 2

Subtract 3 from both sides:

y = 2 - 3 y = -1

So, the solution to the system of equations is:

x = 3 y = -1