gigi625 gigi625

14-11-2016
Mathematics

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y=-2x-9
y= 2x-1 how to find x and y

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fadezz3630 fadezz3630

14-11-2016

use the second equation to plug it in to the first one and use PEMDAS to solve so then it would look like this

2x-1=2x-9
+9 +9
2x+8=2x
2x 2x

8=x

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