Question

पुढील एकसामायिक समीकरण सोडवा
2x + y 5; 3x -y 35​

Answer 1

Answer:

x = 8, y = -11

Step-by-step explanation:

2x + y = 5

So, y = 5 - 2x

Now,

3x - y = 35

3x - (5 - 2x) = 35

3x - 5 + 2x = 35

5x = 40

x = 8, y = -11

Answer 2

Answer:

x = 8 , y = -11

Step-by-step explanation:

2x+ y = 5

3x-y = 35

by elimination method

multiply the whole equations with coefficient of y to find the value of x

[2x+y = 5] 1

[3x-y = 35] 1

= 2x+y=5

  3x-y =35

------------------

  5x = 40

------------------

= 5x = 40

= x = 40/5

= x=8

.:. the value of x is 8...!

NOW SUBSTITUTE THE VALUE OF X IN EQN TO FIND THE VALUE OF Y

   2x + y = 5

=  2[8] + y = 5

=  16 + y =5

=   y = 5 -16

= y = -11

.:. the value of y is -11

VERIFICATION :

2x + y = 5

= 2[8] + [-11] = 5

= 16 - 11 =5

= 5=5

hence the answer we got is correct