Graphical method x + y = 14 x - y = 4

1.	Graphical method x + y = 14 x - y = 4
Answer» x+y=14......... (1)x-y=4..........(2)x=4+yx+y=144+y+y=144+2y=142y=14-42y=10y=10÷2y=5x=4+yx=4+5x=9 x+y=14........(i)x=14-y......(a)x-y=4........(ii)Substitute in (a) in (ii)14-y-y=414-2y=4-2y=4-14y=-10/-2y=5Substitute in(i)x+y=4x+5=4x=4-5x=-1 This for solving method not for graphical method x + y = 14 ........(i)x - y = 4 .........(ii)(i) + (ii)2x = 18x = 18/2 = 9Put x = 9 in (i)9 + y =1 4y = 14 - 9y = 5So, x = 9 and y = 5

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