" the simultuned equatiems "9x-8y=5" fixtay "

If A=[{:(9, 7, 3), (5, -1, 4), (6, 8, 2):}]" find "A^(-1) and hence solve the system of equations: 9x+7y+3z=6, 5x-y+4z=1, 6x+8y+2z=4 .

Prove that the straight lines 4x+7y=9, 5x-8y+15=0 and 9x-y+6=0 are concurrent.

Prove that the straight lines 4x+7y=9, 5x-8y+15=0 and 9x-y+6=0 are concurrent.

The graphs of the equations 5x-15y=8 and 3x-9y=(24)/(5) are two line which are

6x+4y=5 9x+6y=8

Find the point where the straight lines 7x-8y-3=0 and 10y-9x+5=0 intersect.

The following steps are involved in finding the value of x.y, if (3x + 4y)/(2x + 5y) = (4)/(3). Arrange them in sequential order from the first to the last. (A) 9x + 12 y = 8x + 20y (B) Given, (3x + 4y)/(2x + 5y) = (4)/(3) (C) (x)/(y) = 8 rArr x:y = 8:1 (D) (3x + 4y)3 = (2x + 5y)4 (E) x = 8y

If x and y satisfy the equations, 8x+ 5y = 9 and 3x+2y = 4 then y=……