Question

Two equations are given below

a - 3b=4
a= b - 2

What is the solution to the set of equations in the form (a,b)?

Answer 1

(-5,-3)

Explanation:

In this case to find the solution you could use substitution. This way you can solve without changing the equation over again.

(b - 2) - 3b = 4

b - 2 - 3b = 4

-2b - 2 = 4

-2b = 6

b = -3

Plug back in to find value a

a = (-3) - 2

a = -5

Check your answer before submitting

(-5) - 3(-3) = 4

-5 + 9 = 4

4 = 4

Hope this helps