Прошу решить систему уравнений. Дам 20 баллов 3.2х + 15у= -1 4х + 0.3у= -19.7. Created by mashamustafayeva04. algebra-ru

Прошу решить систему уравнений. Дам 20 баллов 3.2х + 15у= -1 4х + 0.3у= -19.7...

mashamustafayeva04 @mashamustafayeva04

July 2022 1 19 Report

Прошу решить систему уравнений. Дам 20 баллов

3.2х + 15у= -1
4х + 0.3у= -19.7

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Universalka

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$\left \{ {{3,2x+15y=-1} \atop {4x+0,3y=-19,7}|*(-50)} \right.\\\\+\left \{ {{3,2x+15y=-1} \atop {-200x-15y}=985} \right.\\ -------\\-196,8x=984\\x=-5\\\\15y=-1-3,2x=-1-3,2*(-5)=-1+16=15\\\\y=1\\\\Otvet:\boxed{(-5;1)}$

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