Question

X+2y=5 y-x=1 2x+y=4 2y-x=3

Answer 1

Ответ:(x,y)=(1,2)

Объяснение:

вроде так

Answer 2

To solve the system of equations:

1. x + 2y = 5
2. y - x = 1
3. 2x + y = 4
4. 2y - x = 3

There are multiple ways to solve this system. One common method is substitution. Let's start by solving equation 2) for x:

From equation 2), we have: y - x = 1 x = y - 1

Now we can substitute this expression for x in the other equations:

1. x + 2y = 5 Substituting x = y - 1: (y - 1) + 2y = 5 3y - 1 = 5 3y = 6 y = 2

Now we can substitute the value of y into equation 2) to find x:

2. y - x = 1 Substituting y = 2: 2 - x = 1 x = 1

So the solution to the system of equations is x = 1 and y = 2.