Solve the system of equations and express the answer as an ordered pair of the form (x,y) or write NO SOLUTION if applicable:
x + 2y = 5
2x - 2y = 4

Question

Solve the system of equations and express the answer as an ordered pair of the form (x,y) or write NO SOLUTION if applicable:
     x + 2y = 5
    2x - 2y = 4

mathstudent55 · Answer

Try addition.

anonymous · Answer

Use the addition method:  add the two equations together; when you do, you will see that one of the variables (the y variable) will cancel out, leaving you with the other variable.  Solve for that variable.  When you find it, substitute the value for x back into either of the ORIGINAL equations and solve for y.

anonymous · Answer

So, 3x=9, then you divide by 3, x=3 but how would I get y?

anonymous · Answer

sorry, i missed your y question.  when you know that x = 3, substitute it back into one of the original equations:

3 + 2y = 5   or

2(3) - 2y = 4

you will find that y = 1