posted by jasort120 .
i need help solving the system by addition.
this is what i think but i am not sure
5x - 7 (-1/3x + 1/3) = 5
so my solutions i get is
x = 1 and y = 0
You have the solution ,but you did not get it by addition.
Multiply the second equation by -5
Now add the equations.
0x - 22y= 0
Put y=0 into either equation, and solve for x.