12x-9y=18 solve system of linear equation using any algabraic method,please?
The 1st step is to simplify each equation by dividing through by the common factor. Divide the 1st by 2 and the 2nd by 3.
Now you can see that coefficients are the same, so the elimination method is easiest. Subtract the two equations and you get:
Since this is an untrue equation, then the conclusion is that there are no solutions, the lines are parallel.