Question

4x-3y=9
3x-4y=5 please tell fast ​

Answer 1

Step-by-step explanation:

$3x - 4y = 5 \\ \\ 3x = 5 + 4y \\ \\ 3x = 4y + 5 \\ \\ \frac{3x}{3} = \frac{4y + 5}{3} \\ \\ x = \frac{4y + 5}{3}$

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Answer 2

Step-by-step explanation:

4x-3y=9 ___(1)

3x-4y=5____(2)

subtracting eqn 1 and 2

- 4x-3y=9

3x-4y=5

_ + _

x + y=4 ___(3)

adding eqn 1 and 2

+ 3x-4y=5

4x-3y=9

7x-7y=14

7(x-y) =14

x-y=14/7

x-y=2____(4)

adding eqn 3 and 4

+ x + y=4

x-y=2. here +y -y cross

2x_=6

x=6/2

x=3

put x=3 in eqn 4

x-y=2

3-y=2

-y=2-3

-y=-1. here _ and _ cross

y=1

x=3 and y=1