Question

solve the equations in cross multiplication method :3x-3-y=0; 4x-8-y=0 ?

Answer 1

3x-3-y=0 and 4x-8-y=0

3x-y-3=0 4x-y-8=0

By cross multiplication method, we get

x/(-1) ×(-8)-(-3)×(-1) = y/(-3) ×4-(-8)×3 = 1/3×(-1)-4×(-1)

x/8-3 = y/-12+24 = 1/-3+4

x/5 = y/12 = 1

therefore x/5=1 and y/12=1

x=5 and y=12