Question

Solve the equation by using cross multiplication method.

2x-3y=15

3x-5y=20​

Answer 1

Answer:

x=-15 and y=5 is the correct answer.

Step-by-step explanation:

2x-3y-15=0

3x-5y-20=0

by cross multiplication method.

x/(-3)(-20)-(-5)(-15)=y/(-15)(3)-(-20)(2)=1/(-5)(2)-(-3)(3)

x/60-45=y/-45+40=1/-10+9

x/60-45=1/-10+9

x/15=1/-1

-x=15

x=-15

y/-45+40=1/-10+9

y/-5=1/-1

-y=-5

y=5

It helps you....