Question

Q1- di gayi samikarno ko vilopan vidhi dwara hal kare ;

1. 3x+4y=10 and x-y=1
2. 3y- 5z = 4 and 9y-2z = 7.

i want proper answer in hindi ... ​

Answer 1

$in( \: a \: )$

Given :

$x - y = 1$

$x = 1 + y$

Putting the value of x in the equation

$3 \times ( - 1) + 4y = 10$

$4y = 13$

$y = \frac{13}{4}$

Putting the value of y in equation

$3x + 4 \times \frac{13}{4} = 10$

$x = - 1$

Hope it helps...

Answer 2

Answer:

x=7 ........

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