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3x+4y-12=0 and 7x+2y-17=0 are given eqns

Solving by x,y,1 cross multiplying method

in eqn 1 ---- x=3, y=4, c=-12
in eqn 2 ---- x=7, y=2, c=-17
                          x       y    1               
                       4    -12    3     4
                          X      X    X
                       2    -17    7     2
x/[(-17x4)-(-12x2)] = y/[(-12x7)-(-17x3)] = 1/[(3x2)-(7x4)]              
x/-68+24 = y/-84+51 = 1/6-28
x/-44 = y/-33 = 1/-22
x=-44/-22, y=-33/-22
x=4/2, y=3/2
therefore x=2, y=3/2

3 4 3
Hope it helps you.. Please click on thanks and mark it as best..
the answer you posted me is right or not.if you are sure so please contact with me
yes its 100% correct deariee... For proof just place 2,3/2 in the given equations, then you will get 12,17 as same as in the question.. So its 200% correct :P
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