hat does x in the solution equal in the following system of equations?

–2x + y = 5
y = 2 – x

Question

hat does x in the solution equal in the following system of equations?

–2x + y = 5
    y = 2 – x

anonymous · Answer

x = -1

anonymous · Answer

Subtracting the second equation from the first,$$-2x+y-y=5-2+x$$$$-2x=3+x$$$$-3x=3$$$$x=-1$$

anonymous · Answer

Thanks

anonymous · Answer

y = 2 – x  , y+x=2   time(2)=2y+2x=4
               2y+2x=4
                y -2x =5
  ADD--------------
                   3y=9
                      y=9/3
                       y=3
Substitution y=3  find x
 –2x + y = 5
 –2x + 3 = 5
        -2x=5-3
             x=2/-2
              x=-1