Question

Solve each system of equations using substitution. #4 is done for you.

4) y = x + 8
x + y = 2

Answer 1

y = 5 and x = -3

Explanation:

Given,

y = x + 8 ...............( equation 1 )

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

Now, by substituting the value of y in equation 2, we get;

⇒ x + x + 8 = 2

⇒ x = -3

and now, by substituting the value of x in equation 1, we get;

⇒ y = -3 + 8

⇒ y = 5