Method of cross multiplication

By solving equations 3x + 4y = 23 and 5x + 12y = 39 with the help of cross multiplication method, we obtain (x)/(a) = (y)/(b) = (1)/(c ) , then find (a + 4b)/(5c) .

By solving equations 3x+4y=25 and 4x + 3y=24 with the help of cross - multiplication method, we obtain (x)/(a)=(y)/(b)=(1)/(c). Then, (a+b)/(c) is equal to

Find the point of intersection of two lines by substitution and cross multiplication method

Method of multiplication of two determinants

Solve the following system of equations by cross multiplication method 3x - 5y = 20 and 7x + 2y = 17.

Solve the following equation by cross- multiplication method: (a)/(x)-(b)/(y)=0 and a(b^(2))/(x)+a(b^(2))/(y)=a^(2)+b^(2)