Others Maths Puzzle

If f(2x+3y, 2x-7y) = 20x, then f(x,y) equals:
a. 7x-3y b. 7x+3y c. 3x-7y d. 3x+7y

Read Solution (Total 1)

2x+3y->x
2x-7y->y
we get f(x,y)=7x+3y
11 years agoHelpfull: Yes(1) No(7)

Others Other Question

13^402 mod 8000 , remainder ?? ABCD is a Square . E,F,G,H are the mid pts of the sides . j and K are the Points on HG AND GF such that Hj=2/3hg and gk=1/2gf . L is a point On EF such that Lf=1/4ef . What is the ratio of area of triangle JkL to that of the square ABCD