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-2x-5y=9

3x+11y=4

solve using elimination

 Jan 11, 2022
edited by Guest  Jan 11, 2022
 #1
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solve using elimination

 

Hello Guest!

 

\(-2x-5y=9\\ y=\frac{2x+9}{-5}=-0.4x-1.8\\ 3x+11y=4\\ y=\frac{-3x+4}{11}\)

\(-0.4x-1.8=\frac{-3x+4}{11}\\ -4.4x-19.8=-3x+4\\ -23.8=1.4x \)

\(x=-17\)

\(y=-0.4x-1.8\\ y=-0.4\cdot(-17)-1.8\)

\(y=5\)

laugh  !

 Jan 11, 2022
edited by asinus  Jan 11, 2022

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