Question

Нади какие нибудь три решения уравнения x-y=5 2x-3y=-6 пожалуйста помогите

Answer 1

{x-y=5

{2x-3y=-6

x=5+y

2(5+y)-3y=-6

10+2y-3y=-6

2y-3y=-6-10

-y=-16

y=16

x-16=5

x=16+5

x=21

Ответ: (21 ; 16)

Answer 2

Solving the System of Equations

To solve the system of equations x - y = 5 and 2x - 3y = -6, we can use various methods such as substitution, elimination, or matrix methods. Let's solve it using the substitution method.

1. Solve the first equation for x in terms of y: x = y + 5.

2. Substitute the value of x in the second equation: 2(y + 5) - 3y = -6.

3. Simplify and solve for y: 2y + 10 - 3y = -6, -y + 10 = -6, -y = -16, y = 16.

4. Substitute the value of y back into the first equation to find x: x = 16 + 5, x = 21.

Therefore, the solution to the system of equations x - y = 5 and 2x - 3y = -6 is x = 21 and y = 16.