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Find three solutions to each equation then graph the solution set -2x+y=1

Sagot :

Panoyin
First Solution
        -2x + y = 1
-2x + 2x + y = 1 + 2x
                 y = 1 + 2x

Second Solution
     -2x + y = 1
-2x + y - y = 1 - y
           -2x = 1 - y
            -2       -2
              x = -0.5 + 0.5y
0.5 + x - x = -0.5 + 0.5 - x + 0.5y
           0.5 = -x + 0.5y
 -0.5y - 0.5 = -x + 0.5y - 0.5y - 0.5
   2 · (-0.5y) = 2(-x - 0.5)
                y = -2x - 1

Third Solution
             -2x + y = 1
        -2x + y - 1 = 1 - 1
        -2x + y - 1 = 0
-2x + 2x + y - 1 = 2x
                 y - 1 = 2x
           y - 1 + 1 = 2x + 1
                      y = 2x + 1
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