помогите пожалуйста! пункт ж) з) и) л) к) Срочно пожалуйста... Created by mujgan04. algebra-ru

Ж){ x+5y=3{ x+4y=2 *(-1){ x+5y=3{ -x-4y=-2y=1 x=2-4y=-2Ответ: (-2;1)з){2y-3x=6{y-3x=9 *(-1){2y-3x=6{-y+3x=-9y=-3x=(9+y)/3=4Ответ:(4;-3)и){4x+3y=-4 *6{6x+5y=-7 *(-4){24x+18y=-24 {-24x-20y=28-2y=4y=-2x=-(4+3y)/4=0.5Ответ:(0.5;-2)к){7x=9y{5x+3y=66 *3{7x-9y=0{15x+9y=19822x=198x=9y=7Ответ:(9;7)л){5x+6y=0 *(-3){3x+4y=4 *5{-15x-18y=0{15x+20y=202y=20y=10x=-12Ответ:(-12;10)спасибо)Новые вопросы в АлгебраОцінити значення вразу 4b, якщо -3 <b<2. Звільнитись від ірраціональності у знаменнику дробу: 24 √5-7 Спростити вираз: -17m⁶n*(-0.5m*n¹³Реши уравнение можно с решением поподробнее. Скільки цілих чисел містить множина розв'язкiв нерівності: 4 - 9х ≤11? 2 -9≤ 22. Реши уравнение можно с решениемРеши уравнение можно с решениемРозв'язати нерiвнiсть: x+13 > -8x + 22 Разложи на множители можно пожалуйста поподробнееРазложи на множители можно только вариант ответаПредыдущийСледующийВместе мы знаем большеЭтот сайт использует cookies Политика Cookies . 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помогите пожалуйста! пункт ж) з) и) л) к) Срочно пожалуйста...

mujgan04 @mujgan04

July 2022 1 10 Report

помогите пожалуйста! пункт ж) з) и) л) к) Срочно пожалуйста..

Answers & Comments

foulinstar Ж)
{ x+5y=3
{ x+4y=2 *(-1)
{ x+5y=3
{ -x-4y=-2
y=1
x=2-4y=-2
Ответ: (-2;1)
з)
{2y-3x=6
{y-3x=9 *(-1)
{2y-3x=6
{-y+3x=-9
y=-3
x=(9+y)/3=4
Ответ:(4;-3)
и)
{4x+3y=-4 *6
{6x+5y=-7 *(-4)
{24x+18y=-24
{-24x-20y=28
-2y=4
y=-2
x=-(4+3y)/4=0.5
Ответ:(0.5;-2)
к)
{7x=9y
{5x+3y=66 *3
{7x-9y=0
{15x+9y=198
22x=198
x=9
y=7
Ответ:(9;7)
л)
{5x+6y=0 *(-3)
{3x+4y=4 *5
{-15x-18y=0
{15x+20y=20
2y=20
y=10
x=-12
Ответ:(-12;10)