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14-03-2017
Mathematics

contestada

This system has one solution.
{y=5x−9 and y=x^2−3x+7

What is the y-coordinate of the solution?

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Аноним Аноним

14-03-2017

I hope this helps you

5x-9=x^2-3x+7

x^2-8x+16=0

x -4

x -4

(x-4)(x-4)=0

x=4

y=5.4-9

y=11

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