CBSE Class 10  Cross Multiplication Method Videos
Cross Multiplication Method
This video explains the cross multiplication method to solve a pair of linear equations and applying the same to solve word problems.

3x5y4=0...9x=2y+7
 2/x+2/3y=1/6; 3/x+2/y=0
 ax+by=c bx+ay=1+c
 Solve The Following Simultaneous Equation 5p+7q=26;2p+3q=11
 Solve this by cross multiplication method 2(ax by)+ a+ 4b = 0 2(bx+ay) + b  4a = 0
 For what values of a the following pair of equation 4x+3y=3 and 8x+ay=5 will have a unique solution
 Without drawing graph, check whether the lines 3x + y = 10 and 6x  2y = 20 are parallel or not.
 Find the solution of 3x 2y + 5 = 0; 5x + 7y  2 = 0
 Solve for 'x & y' in the system of equations 3x2y = 1, 2x3y=1