The value of 'x' in the solution to the following system of equations is -1 and this can be determined by using the arithmetic operations.
Given :
The following steps can be used in order to determine the value of x:
Step 1 - The arithmetic operations can be used in order to determine the value of 'x'.
Step 2 - Write the given system of equations.
x - y = -3 --- (1)
x + 3y = 5 --- (2)
Step 3 - Simplify the equation (1).
x = y - 3 --- (3)
Step 4 - Substitute the value of 'x' in equation (2).
y - 3 + 3y = 5
4y = 8
y = 2
Step 5 - Substitute the value of 'y' in equation (3).
x = 2 - 3
x = -1
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