Solve 3x - y = 23 and `(x)/(3) + (y)/(4)` = 4.

For solving each pair of equations, in this exercise, use the method of elimination by equation coefficiients : 3x - y = 23 (x)/(3) + (y)/(4) = 4

Solve 3x - 4y = 20 and x + 2y = 5.

Solve 3x - 4y = 20 and x + 2y = 5.

Solve 3x - 4y = 20 and x + 2y = 5.

Solve : 4x + (6)/(y ) = 15 and 3x - (4)/(y) = 7 . Hence, find 'a' if y = ax -2.

Solve : (3)/(x + y ) + ( 2)/(x - y ) = 2 and (9)/(x + y ) - ( 4)/(x - y) = 1 .

Solve {:(2x + y = 23),(4x - y = 19):}

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 = 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) .