i wnt these solutiopn immediately !!please

In the first question, multiply the first equation by a and second by b, we get,

a²x + aby = ac        (1)

b²x + aby = b + bc  (2)

Now, subtract (2) from (1), you will get the value of x and then put the value of x in any one of the given equations to get the value of y.

 

You can also do this question using cross multiplication method.

 

In the second question, applying cross multiplication method, we get,