How do you solve the system of equations 4 x - 2 y = 1 and - 4 + 4 y = - 2

Question

Tatum Mercado

Mathematics

21 April, 19:17

How do you solve the system of equations 4 x - 2 y = 1 and - 4 + 4 y = - 2

+2

Answers (1)

Know the Answer?

Martha Rangel · Answer 1

Answer: y = - 2 - 1/2

Step-by-step explanation:

-4x - 2y = 1

+4x + 4x

-2y = 4x + 1

/-2 / -2 / -2

y = - 2 - 1/2

I think, i may be incorrect but the verbal explanation is; - 4x is needed to be moved so you add 4x to both sides and 4x cancels out on the left which leaves - 2y on the left (when it was moved "x" is always first). then divide all numbers by - 2 to get y by itself. this gives you y = - 2 - 1/2 if my calculations are correct.