Question

What variable do I solve for first? Do I solve for X because it’s first in the alphabet? If so, which X variable do I solve for? Do I solve for the smallest or biggest? I added a photo of the one i’m struggling with! :))

Answer 1

system has no solution

Explanation:

3.25x - 1.5y = 1.25 → (1)

13x - 6y = 10 → (2)

multiplying (1) by - 4 and adding to (2) eliminates both x and y

- 13x + 6y = - 5 → (3)

add (2) and (3) term by term on both sides

(13x - 13x) + (- 6y + 6y) = 10 - 5

0 + 0 = 5

0 = 5 ← false statement

this false statement indicates the system has no solution