Question

What is the value of x in the solution to the following system of linear equations?

y=x-1
y=2x+1


–3
–2
–1
0

Answer 1

The answer is X=-2

Hope this helps :3

Answer 2

The value of x in the solution to the given system of linear equation is x = -2

Explanation:

The system of equations is given to be :

y = x - 1 .........(1)

y = 2x + 1 ........(2)

We need to solve both of these equations.

So, Putting y = x - 1 from equation (1) into equation (2)

⇒ x - 1 = 2x + 1

⇒ -x = 2

⇒ x = -2

Also, y = x - 1

⇒ y = -2 - 1

⇒ y = -3

Hence, The value of x in the solution to the given system of linear equation is x = -2