Помогите решить систему уравнения! 3х-у=5 2х+7у=11. Created by ulyankaaverina. algebra-ru

Помогите решить систему уравнения! 3х-у=5 2х+7у=11...

July 2022 1 6 Report

Помогите решить систему уравнения!
3х-у=5
2х+7у=11

Answers & Comments

eeerrrtttggg 3x-y=5 |×7
2x+7y=11
_______________
21x-7y=35
2x+7y=11
_______________
23x=46
x=2
_______________
3x-y=5
6-y=5
y=1
_______________
ответ: 2;1

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