SOLUTION: Without graphing, decide whether the system has one solution, no solution, or an infinite number of solutions. Make sure to explain your answer for credit. y = 2x -2x + y = -

Algebra ->  Graphs -> SOLUTION: Without graphing, decide whether the system has one solution, no solution, or an infinite number of solutions. Make sure to explain your answer for credit. y = 2x -2x + y = -      Log On


   

Question 946876: Without graphing, decide whether the system has one solution, no solution, or an infinite number of solutions. Make sure to explain your answer for credit.

y = 2x
-2x + y = - 5
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
No solutions. The lines are different but parallel. Solve the second equation for y and you will find the slopes of the two lines are equal, so parallel lines.