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March 1, 2015

Posted by **Geneva** on Wednesday, June 6, 2012 at 4:57pm.

5 X - 4y = -3

- sovle by substution -
**Ms. Sue**, Wednesday, June 6, 2012 at 5:01pmYour first equation tells a value for Y. Substitute that in the second equation.

5x - 4(-3x + 5) = -3

5x + 12x - 20 = -3

17x = 20 - 3

17x = 17

x = 1

Now substitute 1 for x in the first equation to find a value for y.

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