Question

3. Solve the system of equations using the elimination method.

5x + 2y = 9
-5x + 4y = 3

please give detailed steps!!

Answer 1

x = 1

y = 2

Explanation:

5x + 2y = 9

-5x + 4y = 3

==> 6y = 12 ==> y = 12/6 ==> y = 2.

we replace y by its value in the first or the second equation, so will have:

5x + 2×2 = 9

5x + 4 = 9

5x = 5

x = 1