Question

Find value of x and y - 4x-2y=9, and 3x+4y=4

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

$x = 2 \: \: y = - \frac{1}{2}$

Step-by-step explanation:

$4x - 2y = 9 ....equation(1) \\ \\ 3x + 4y = 4...equation(2) \\ \\ = > take \: 2 \times equation(1) + equation(2) \\ \\ 8x - 4y = 18 \\ \: 3x + 4y = 4 \\ ........................... \\ 11x + 0 = 22 \\ \\ 11x = 22 \\ \\ x = \frac{22}{11 } \\ \\ x = 2 \\ \\ = > value \: of \: x \: put \: in \: equation(1) \: or \: equation(2) \\ \\ 4(2) - 2y = 9 \\ \\ 8 - 2y = 9 \\ \\ 8 - 9 = 2y \\ \\ 2y = - 1 \\ \\ y = - \frac{1}{2}$