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Solve the following system by graphing
3x-y=5
X+2y=-3

Sagot :

Panoyinidn
3x - 1y = 5   ⇒ 3x - 1y = 5
1x + 2y = -3 ⇒ 3x + 6y = -9
                                7y = 14
                                 7      7
                                  y = 2
                         1x - 2y = -3
                       1x - 2(2) = -3
                           1x - 4 = -3
                                +4    +4
                                   x = 1
                             (x, y) = (1, 2)
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