Question

solve the following simultaneous equation by the graph q no. 3

Answer 1

step-1 by the given equation you have find that by solving first equation you get x=y
step-2 oh putting x=y on second equation you get 2x-x=9
x=9
and we know that x=y
then, y is also 9
hence the required ANSWER is x=9, y=9

Answer 2

3x-4y= -7......i
5x-2y= 0....ii
for equal one value we multiple 2 to ii
then 10x-4y= 0
3x-4y=-7
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7x= 7
x= 1

and 3.1 - 4y = -7
-4y = -7-3
y= -10/-4 = 10/4