36^x=3,36^y=4求2x+y的值
已知x:y:z=2:3:4,且x-y+z=36,求x+y+z的值.
已知2x-y/x+3y=2,求代数式4x-2y/x+3y减4x+12y/2x-y的值
已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值?
已知4x-2y=0,求x-y/3x+2y的值
已知3x-4y/2x+y=1/2 求x/y的值
已知x/y=3/4,求2x-y/x+y的值.
36^x=3,36^y=4求2x+y的值
设3^x=4^y=36,求2/x+1/y的值?
设3^x=4^y=36求2/x+1/y的值
已知3^x=4^y=36,求2/x+1/y的值.
1.已知:x-2y=3,求[(3x+2y)(3x-2y)-(x+2y)(5x-2y)]除4x 的值
已知x-2y=2011,求[(3x+2y)(3x-2y)-(x+2y)(5x-2y)]÷4x的值.