Question

solve the following by cross multiplication method.
3x-4y=7 and 5x+2y=3​

Answer 1

x= 1 and y = (-1)

Step-by-step explanation:

given equation ,

3x-4y-7=0. ......(1).

5x+2y-3=0. .......(2).

by use cross multiplication method .

x/(b1c2-b2c1). = y/(c1a2-c2a1). = 1/(a1b2-a2b1).

so...

x/(12+14) = y/(-35+9). = 1/(6+20).

take here

x/26= 1/26.

( x= 1).

and

y/-26=1/26.

( y= -1)

Answer 2

hey mate!!