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03-12-2017
Mathematics

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Solve each system of equations by graphing Y=3x+4 and y=-x-4

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03-12-2017

y = 3x + 4
y = -x - 4

3x + 4 = -x - 4
3x + x = -4 - 4
4x = -8
x = -8/4
x = -2

y = 3x + 4
y = 3(-2) + 4
y = -6 + 4
y = -2

solution is (-2,-2) <==

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