Question

Can anyone help me please?

Answer 1

Plug in (-1, 3) into both equations

Ax - 2y = 4

A(-1) - 2(3) = 4

-A - 6 = 4   Add 6 on both sides

-A = 10       Divide -1 on both sides

A = -10

5x + By = -1

5(-1) + B(3) = -1

-5 + 3B = -1      Add 5 on both sides

3B = 4       Divide 3 on both side

B = $\frac{4}{3}$