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)?

(−2, −2)
(−3, −1)
(−9, −7)
(−5, −3)

Answer 1

(b-2) - 3b = 4
b-2 - 3b = 4
-2b = 6
b = -3
a - 3(-3) = 4
a + 9 = 4
a = -5
Your answer is D ( -5, -3)
Does it helps?

Answer 2

Thank you for showing your work.