Giải hệ pt : { x/2 – y/3 = 1 x/4 + 2y/3 = 8 01/11/2021 Bởi Jasmine Giải hệ pt : { x/2 – y/3 = 1 x/4 + 2y/3 = 8
$\left \{ {{x/2 – y/3=1} \atop {x/4+2y/3=8}} \right.$ ⇔$\left \{ {{3x-2y=6} \atop {3x+8y=96}} \right.$ ⇔ $\left \{ {{-10y=-90} \atop {x/2-y/3=1}} \right.$ ⇔$\left \{ {{y=9} \atop {x/2 – 3=1}} \right.$ ⇔ $\left \{ {{y=9} \atop {x-6=2}} \right.$ ⇔ $\left \{ {{y=9} \atop {x=8}} \right.$ Bình luận
$\left \{ {{\frac{x}{2}-\frac{y}{3}=1} \atop {\frac{x}{4}+\frac{2y}{3}=8}} \right.$ ⇔$\left \{ {{3x-2y=6} \atop {3x+8y=96}} \right.$ ⇔$\left \{ {{-10y=-90} \atop {3x-2y=6}} \right.$ ⇔$\left \{ {{y=9} \atop {3x-2.9=6}} \right.$ ⇔$\left \{ {{y=9} \atop {3x=24}} \right.$ ⇔$\left \{ {{y=9} \atop {x=8}} \right.$ #CHÚC BẠN HỌC TỐT #2/2/2021 Bình luận
$\left \{ {{x/2 – y/3=1} \atop {x/4+2y/3=8}} \right.$
⇔$\left \{ {{3x-2y=6} \atop {3x+8y=96}} \right.$ ⇔ $\left \{ {{-10y=-90} \atop {x/2-y/3=1}} \right.$
⇔$\left \{ {{y=9} \atop {x/2 – 3=1}} \right.$ ⇔ $\left \{ {{y=9} \atop {x-6=2}} \right.$
⇔ $\left \{ {{y=9} \atop {x=8}} \right.$
$\left \{ {{\frac{x}{2}-\frac{y}{3}=1} \atop {\frac{x}{4}+\frac{2y}{3}=8}} \right.$
⇔$\left \{ {{3x-2y=6} \atop {3x+8y=96}} \right.$
⇔$\left \{ {{-10y=-90} \atop {3x-2y=6}} \right.$
⇔$\left \{ {{y=9} \atop {3x-2.9=6}} \right.$
⇔$\left \{ {{y=9} \atop {3x=24}} \right.$
⇔$\left \{ {{y=9} \atop {x=8}} \right.$
#CHÚC BẠN HỌC TỐT
#2/2/2021