Mathematics
sonai
26

5x+6y=13;-5x+2y=11. how do I solve this

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(1) Answers
Coltrane323

You solve for X in one equation and plug it into the other. So...  5x+6Y=13  5x=13-6Y  x=(13-6Y)/5  Then, you replace X in the other equation...  -5x+2y=11  -5[(13-6y)/5]+2y=11  -13+6y+2y=11  8y=11+13  8y=24  y=3  Now that you have Y, you just solve for x using either equations...  5x+6(3)=13  5x=13-18  5x=-5  x=-1  Therefore, X = -1 & Y = 3

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