Question

5x-6y+30=0; 5x+4y-20=0

Answer 1

5x -6y +30=0
5x -6y = -30 ----1equation
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5x +4y -20=0
5x +4y =20 ------2equation
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5x -6y= -30
5x +4y = 20
- - -
___________

10y = 50
____________

y =50/10

y =5


Putting the value of y in 1equation,

5x -6y =-30

5x -6(5) = -30..

5x -30= -30

5x =-30+30

x =0/5 =0




I hope this will help you


-by ABHAY

Answer 2

Hii friend,

5X -6Y +30 = 0.......(1)

5X + 4Y -20 = 0.....(2)

From equation (1) , we get

5X -6Y = -30

5X = -30 +6Y

X = -30+6Y/5.....(3)

Putting the value of X in equation (2)

5X +4Y = 20

5 × (-30+6Y/5) +4Y = 20

-30+6Y+4Y = 20

10Y -30 = 20

10Y = 20+30

10Y = 50

Y = 50/10

Y = 5

Putting the value of Y in equation (3)

X = -30+6Y/5

X = -30 +6 × 5 /5

X = -30 + 30/5 = 0/5

X = 0

Hence,

X = 0 and Y = 25

HOPE IT WILL HELP YOU..... :-)