Question

X+y=3 x-y=7 5x-6y=7 10x+6y=8

Answer 1

Ответ:

....

Объяснение:

2х=10

х=5

5+у=3

у=2

15х=15

х=1

10+6у=8

6у=-2

у=1/3

Answer 2

It looks like you've provided a system of equations with four equations and two variables (x and y). Let's solve this system step by step using the given equations:

1. x + y = 3
2. x - y = 7
3. 5x - 6y = 7
4. 10x + 6y = 8

First, we'll solve equations 1 and 2 to find the values of x and y:

Adding equations 1 and 2: (x + y) + (x - y) = 3 + 7 2x = 10 x = 5

Substitute the value of x into equation 1: 5 + y = 3 y = 3 - 5 y = -2

Now we have x = 5 and y = -2. Let's check if these values satisfy the other two equations:

For equation 3: 5x - 6y = 7 5(5) - 6(-2) = 25 + 12 = 37, which is not equal to 7.

For equation 4: 10x + 6y = 8 10(5) + 6(-2) = 50 - 12 = 38, which is not equal to 8.

It appears that there might have been an error in writing down the equations, as the provided equations do not have a consistent solution for x and y. Double-check the equations to ensure their accuracy. If you provide the correct equations, I'd be happy to help you solve the system!