Question

Solve each of the following pairs of linear equations cross
multiplication method :
i)5x- 6y+ 30 = 0
5x +4y - 20 = 0 (ii) 3x- 4y+ 6 = 0
3x+ y - 9 = 0​

Answer 1

Answer:

5x-6y+30=0    and  5x+4y-20=0

5x=6y-30                  5x=20-4y

x=6y-30                    x=20-4y

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

     5                                  5

x=x

5(6y-30)=5(20-4y)

30y-150=100-20y

30y+20y=100+150

50y=250

y=250/50

y=5

if y=5

then  x=5(6y-30)

x=5(6*5-30)

x=5(0)

x=0

please do second one by your self

if you are having any doubt then

otherwise I will make it

BY -- $K

Answer 2

Answer:

Hope this would help you

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