Пояснення:
[tex]\displaystyle\\\left \{ {{3x-8y=1,3} \atop {5x+2y=8,3\ |*4}} \right. \ \ \ \ \ \ +\left \{ {{3x-8y=1,3} \atop {20x+8y=33,2}} \right. \ \ \ \ \Rightarrow\\\\23x=34,5\ |:23\\\\x=1,5.\ \ \ \ \Rightarrow\\\\5*1,5+2y=8,3\\\\7,5+2y=8,3\\\\2y=0,8\ |:2\\\\y=0,4.[/tex]
Відповідь: (1,5;0,4).
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Answers & Comments
Пояснення:
[tex]\displaystyle\\\left \{ {{3x-8y=1,3} \atop {5x+2y=8,3\ |*4}} \right. \ \ \ \ \ \ +\left \{ {{3x-8y=1,3} \atop {20x+8y=33,2}} \right. \ \ \ \ \Rightarrow\\\\23x=34,5\ |:23\\\\x=1,5.\ \ \ \ \Rightarrow\\\\5*1,5+2y=8,3\\\\7,5+2y=8,3\\\\2y=0,8\ |:2\\\\y=0,4.[/tex]
Відповідь: (1,5;0,4).