Asked by Christina
Solve by the elimination method.
2x-7y=-36
7x+2y=33
2x-7y=-36
7x+2y=33
Answers
Answered by
Steve
2x-7y = -36,so
2x = 7y-36
x = (7y-36)/2
plug that into the other equation:
7*(7y-36)/2 + 2y = 33
49y - 258 + 4y = 66
y = 6
so, x = 3
2x = 7y-36
x = (7y-36)/2
plug that into the other equation:
7*(7y-36)/2 + 2y = 33
49y - 258 + 4y = 66
y = 6
so, x = 3
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