решите системы уравнения. Created by ellabcgbvc. algebra-ru

А)сложимх+х+у-у=5+52х=10х=10÷2=5у=10-х=10-5=5(5;5)б){х+у=5{3(х+у)=15{х+у=5{х+у=5в)х+х+у-у=5+22х=7х=3.5у=5-х=5-3.5=1.5(3.5;1.5)г){-4(х+у)=20{3(х+у)=10{х+у=-5{3(х+у)=103×(-5)=10-15=10корней нет Реклама Реклама Новые вопросы в Алгебра упростите выражение срочно :3 Упрости выражение 75°+225°+32°+225°. пожалуйста срочно!!! дам 70 баллов помогите с решение пж. даю 35 баллов (4542*56*47+59-49*855*965*13-9-9-8+495*451):549 ПОЖАЛУЙСТА ПОМОГИТЕ!!!!!!!!!!!! Розв'язати рівняння: |2x + 3| - 5x - 18 = 0. только прошу, ПОДРОБНО РАСПИСАТЬ розв’яжіть систему нерівностей 1) 2,6+x>5(x+1)-6 2(x-0,4)-x<3x-0,5 2) 1,2(3-x)-6>0,8x -2(1-4x)-x<5x Помогите пожалуйста, укороченное решения 629 НОМЕР дам 13 баллов срочно Дано уравнение 13x2+35x−3=0. Запиши старший коэффициент, второй коэффициент и свободный член. Старший коэффициент . Второй коэфф … ициент . Свободный член . Дайте объяснение, пожалуйста Найди f'(п), если f (x) = (5х + 12) - cos x? 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решите системы уравнения...

ellabcgbvc @ellabcgbvc

December 2021 1 48 Report

решите системы уравнения

Answers & Comments

selmash21 А)
сложим
х+х+у-у=5+5
2х=10
х=10÷2=5
у=10-х=10-5=5
(5;5)

б)
{х+у=5
{3(х+у)=15

{х+у=5
{х+у=5

в)
х+х+у-у=5+2
2х=7
х=3.5
у=5-х=5-3.5=1.5
(3.5;1.5)

г)
{-4(х+у)=20
{3(х+у)=10

{х+у=-5
{3(х+у)=10
3×(-5)=10
-15=10
корней нет