Question

Solve this system algebraically.

9x + 2y = 5
y - 2x + 3 = 0


{(11/13, -17/13)}
{(-11/13, -17/13)}
{(-11/13, 17/13)}
{(11/13, 17/13)}

Answer 1

multiply ur second equation by 2 and then subtract

Answer 2

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

Answer 3

Multiply your second equation by negative 2. Add the top and bottom.
9x + 2y = 5
-2(- 2x +y = -3)

9x + 2y = 5
-4x - 2y = 6

5x = 11
x = 11/5

Then plug that back into one of your original equations.

Answer 4

x = 11/5

-2(11/5) + y = -3

Answer 5

Ty

Answer 6

No problem!