Question

3x-y=5. 4x-3y=-1. solve by cross multiplication simultaneous linear equation​

Answer 1

Step-by-step explanation:

Here, a1= 3, b1= -1, c1=-5

a2=4, b2= -3, c2= 1

We have : x/-1x1-5x-3= y/-5x4-3x1= 1/-3x3-4x-1

=>x/-1+15=y/-20-3=1/-9+4

=>x/14=y/-23=1/-5

Therefore, x/14=1/-5. and y/-23=1/-5

=>x=14/-5. =>y=23/5