2.Find the value of `y=4/5(y+10)`

If A = (2,-3) , B= (10,y) and AB = 10 units find the value of y .

If a ,\ b ,\ c are in A.P., find the value of |(2y+4, 5y+7, 8y+a),(3y+5, 6y+8, 9y+b),(4y+6, 7y+9 ,10y+c)| .

If 10y=7x-4 and 12x+18y=1 . Find the value of 4x+6y and 8y-x .

If x = 2 and y = 1, Find the value of (-4x^(2)y^(3)) xx (-5x^(2)y^(5)) .

If [2x+1 5x0y^2+1]=[x+3 10 0 26] , find the value of (x+y) .

If x=2 and y=5 find the values of : (3x)/(2y)

If 3^(4x)=(81)^(-1) and 10^(1/y)=0. 0001 , find the value of 2^(-x+4y)

If x=2 and y=5 find the values of : 3x-4y

In parallelogram ABCD , AB = (3x- 4) cm, BC = ( y- 1) cm , CD = ( y+ 5) cm and AD = (2x+ 5) cm. find the ratio AB : BC. Find the values of x and y.

When x=4 and y=2 find the value of : x+y