Question

Solve by cross multiplication method
4x+3y=17; 3x-4y+6=0

Answer 1

hi dear

given equations are 4x+3y=17 and 3x−4y+6=0

Comparing with a1x+b1y+c1=0 and a2x+b2y+c2=0 we have 

a1=4,b1=3,c1=−17 and a2=3,b2=−4,c2=6

Now , x=a1b2−a2b1b1c2−b2c1 and y=a1b2−a2b1c1a2−c2a

hopes its helps you