bewellplus.gsu.edu
samhen93 samhen93
  • 03-12-2014
  • Mathematics
Answered

6x-5y=22 y=-8 using systems of equations by substitution

Verified Answer :

AndyBryer
AndyBryer AndyBryer
  • 03-12-2014

We need to sub y=-8 into the first equation
6x+40=22
6x=-18
x=-3

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luana
luana luana
  • 03-12-2014

\(\left \{ {{6x-5y=22} \atop {y=-8}} \right. \\\\ substitute\ y=-8\ into\ first\ equation\\\\ 6x-5*(-8)=22\\\\ 6x+40=22\ \ \ | subtract\ 40\\\\ 6x=-18\ \ \ | divide\ by\ 6\\\\ x=-3\\\\ y=-8\)

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