Question

Розв'яжіть систему рівнянь способом підстановки 2х+у=7 3х-у=3 Срочноо, до 15:20

Answer 1

Ответ:

(2;3)

Объяснение:

Answer 2

Solving the System of Equations using Substitution Method

To solve the system of equations using the method of substitution, we will substitute one variable in terms of the other and then substitute this expression into the other equation. Let's solve the given system of equations:

Equation 1: 2x + y = 7 ---(1) Equation 2: 3x - y = 3 ---(2)

We can solve this system of equations by substituting one variable in terms of the other. Let's solve Equation 1 for y:

From Equation 1, we have: y = 7 - 2x

Now, substitute this expression for y in Equation 2:

3x - (7 - 2x) = 3

Simplify the equation:

3x - 7 + 2x = 3

Combine like terms:

5x - 7 = 3

Add 7 to both sides:

5x = 10

Divide both sides by 5:

x = 2

Now that we have the value of x, we can substitute it back into Equation 1 to find the value of y:

2(2) + y = 7

4 + y = 7

Subtract 4 from both sides:

y = 3

Therefore, the solution to the system of equations is x = 2 and y = 3.

Solution:

The solution to the given system of equations using the method of substitution is x = 2 and y = 3.

Please note that the solution provided is based on the information given. If there are any additional constraints or information, please let me know, and I'll be happy to assist you further.