Question

5x-4y=19 and x+2y=8
pls reply fast

Answer 1

Step-by-step explanation:

5x-4y=19 , x+2y=8 two equations we need to add the equation but we have make any of the variable same for that we have to multiply 2nd equation bg 2 and then add both equation we get x=5 then find y = 3/2

Answer 2

The value of x is 5 and the value of y is 1.5.

Step-by-step explanation:

We have,

$5x-4y=19..........(1)\\\\x+2y=8.......(2)$

Multiplying equation (2) by 5. So,

$5x+10y=40..........(3)$

Subtracting equation (1) and (3) we get :

$5x-4y-(5x+10y)=19-40\\\\5x-4y-5x-10y=-21\\\\-14y=-21\\\\y=1.5$

Put the value of y in equation (2), we get :

$x+2y=8\\\\x+2(1.5)=8\\\\x+3=8\\\\x=5$

So, the value of x is 5 and the value of y is 1.5.

Learn more,

Solving of equation

https://brainly.in/question/12655219