Bonjour! Resoudre le systeme.... Pergunta de ideia desimioncah11

simioncah11 @simioncah11

January 2021 1 38 Report

Bonjour!
Resoudre le systeme

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Aftershock $\left \{ {{2x+2y=30} \atop {x= \frac{2}{3}y }} \right.$

$\left \{ {{2(\frac{2}{3}y)+2y=30} \atop {x= \frac{2}{3}y }} \right.$

$\left \{ {{\frac{4}{3}y+2y=30} \atop {x= \frac{2}{3}y }} \right.$

$\left \{ {{\frac{10}{3}y=30} \atop {x= \frac{2}{3}y }} \right.$

$\left \{ y=9} \atop {x= \frac{2}{3}y }} \right.$

$\left \{ y=9} \atop {x= \frac{2}{3}*9 }} \right.$

$\left \{ y=9} \atop {x= 6 }} \right.$

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