SOLUTION: Use the elmantion method to solve tje syst of equations 5u+3v=-17 2u+3v=-6

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Question 773839: Use the elmantion method to solve tje syst of equations 5u+3v=-17 2u+3v=-6
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

5u%2B3v=-17....eq.1
2u%2B3v=-6......eq.2
_________________________subtract eq.2 from eq.1 to eliminate v
5u%2B3v-%282u%2B3v%29=-17-%28-6%29
5u%2B3v-2u-3v=-17%2B6
3u%2Bcross%283v%29-cross%283v%29=-11
3u=-11
highlight%28u=-11%2F3%29
plug in eq.2 and solve for v
2%28-11%2F3%29%2B3v=-6......eq.2
-22%2F3%2B3v=-6
3v=-6%2B22%2F3
3v=-18%2F3%2B22%2F3
3v=4%2F3
v=%284%2F3%29%2F3
highlight%28v=4%2F9%29