Question

solve the following in algebric method x – 2y = -10 , 3x – 5y = -12​

Answer 1

Step-by-step explanation:

x - 2y = - 10..................(1)

3x - 5y = - 12..................(2)

multiply equation (1 ) by 3 and subtract equation (2)

3x - 6y = - 30

3x - 5y = - 12

- +. +

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

- y. = - 18

y = 18

substitute y=18 in equation (1)

x = 2y -10

x = 2 × 18 - 10

x = 26

Answer 2

Step-by-step explanation:

x-2y=-10-----------(1) ×3

3x-5y=-12----------(2)

समीकरण (1) को 3 से गुणा कर समीकरण (2) से घटाने पर

3x-6y= - 30

3x-5y= -12

- + = +

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

-y= -18

y= 18

y= 18 समीकरण (1) मे रखने पर

x -2×18= -10

x = -10+36

x = 26

अतः x =26 , y=18