Question

Решите систему уравнений способом подстановки. 3x-y=11 3y=3 Умоляю срочно

Answer 1

3x-y=11
3y=3 

3x-y=11
y=1

3х-1=11
3х=11+1
3х=12
х=4

Answer 2

Solving the System of Equations by Substitution

To solve the system of equations using the method of substitution, we'll start with the given equations: 1. 3x - y = 11 2. 3y = 3

We can solve equation 2 for y and then substitute the value of y into equation 1 to solve for x.

First, let's solve equation 2 for y: From equation 2, we have: 3y = 3

Dividing both sides by 3, we get: y = 1

Now that we have the value of y, we can substitute it into equation 1: 3x - 1 = 11

Adding 1 to both sides, we get: 3x = 12

Dividing both sides by 3, we find: x = 4

So, the solution to the system of equations is: x = 4 and y = 1.

Therefore, the solution to the system of equations using the method of substitution is x = 4 and y = 1.