atstanle01ASdfghjkl atstanle01ASdfghjkl

04-08-2017
Mathematics

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please help me i dony know how to do this

please help me i dony know how to do this class=

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choixongdong choixongdong

04-08-2017

substitute y = -2x + 4 into 7y = -14x +28

7y = -14x +28
7(-2x + 4)= -14x +28
-14x + 28 = -14x +28
0 = 0

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