Помогите пожалуйста. . . .. Created by toototottotootototot. algebra-ru

Помогите пожалуйста. . ....

toototottotootototot @toototottotootototot

August 2021 2 7 Report

Помогите пожалуйста. . . .

miron2077

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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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999Dmitry999

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$\left \{ {{4x-y=-7} \atop {x+3y=-5}} \right. \left \{ {{y=7+4x} \atop {x+3(7+4x)=-5}} \right. \left \{ {{y=7+4x} \atop {x+21+12x=-5}} \right. \left \{ {{y=7+4x} \atop {13x=-26}} \right. \left \{ {{y=7+4(-2)} \atop {x=-2}} \right. \\ \left \{ {{y=-1} \atop {x=-2}} \right. \\......................... \\\left \{ {{6y+3x=5} \atop {5x+3y=-1}} \right. \left \{ {{3x+6y=5} \atop {-10x-6y=2}} \right. \\-7x=7\\x=-1\\6y-3=5\\6y=8\\y= \frac{4}{3}$

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