SOLUTION: Solve by substitution then graph, thank you. 4x � 12y = 5 -x + 3y = -1

Question 110240: Solve by substitution then graph, thank you.
4x � 12y = 5
-x + 3y = -1

Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Multiply the second equation by -4 to get: . Since the coefficients on the x and y terms are now identical in both equations, we know that the slopes of the two lines are identical, but the constant term is different, so we know the lines are not coincident. Therefore, this is a system of two parallel lines and there is no solution.
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