What is the value of x in the solution to the following system of equations?
x - y = -3
x + 3y = 5

Solution:

We will use the elimination method to solve the system of linear equations.

Let x - y = - 3 --- equation(1)

x + 3y = 5 --- equation(2)

Step 1: Subtract equation(1) from equation(2).

(x - y = -3) - (x + 3y = 5)

-4y = -8

y = 2

Step 2: Substitute the value of y in equation(1), we get

x - 2 = -3

x = -3 + 2

x = -1

What is the value of x in the solution to the following system of equations?
x - y = -3
x + 3y = 5

Summary:

The value of x in the solution to the following system of equations x - y = -3; x + 3y = 5 is -1.