Question

Two equations are given below:

a – 3b = 22
a = b – 2

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

(–10, –8)
(–12, –10)
(–8, –6)
(–14, –12)
Help! I am so confusedddddddddddd!!!!

Answer 1

You can fill the second in in the first to get an equation with only b:

(b-2) - 3b = 22 =>

-4b-2 = 22 =>

-4b = 24

b = -6

a = -6-2 = -8

So (-8,-6) is the answer.