Question

1.If 2x+3y = 0 and 4x — 3y = 0 then find the value of x + y?​

Answer 1

Answer:

2x+3y=0

2x=-3y

similarly,

4x-3y=0

4x=3y

2x+2x=3y

-3y-3y=3y

-6y=3y

-9y=0

y=0

since,

2x+3y=0

2x+0=0

x=0

therefore, x+y

0+0=0

Answer 2

2x + 3y = 0 ----------1

4x - 3y = 0 ----------2

Adding equations 1 and 2,

2x + 3y = 0

+ 4x - 3y = 0

6x = 0

$x = \frac{0}{6} = 0$

Putting x = 0 in equation 1,

2x + 3y = 0

(2×0) + 3y = 0

0 + 3y = 0

3y = 0

$y = \frac{0}{3} = 0$

x = 0

y = 0

x + y = 0

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