Решите систему уравнений 3x−y=4, 15x+5y=70 . Created by Delanolucky. matematika-ru

Решите систему уравнений 3x−y=4, 15x+5y=70 ...

Delanolucky @Delanolucky

July 2022 1 7 Report

Решите систему уравнений
3x−y=4,
15x+5y=70

Answers & Comments

sweetlie374

Ответ:

(x; y)=(3;5)

Пошаговое объяснение:

3x-y=4

15x+5y=70

y=3x-4

15x+5y=70

15x+5(3x-4)=70

15X+15X-20=70

30x=70+20

x=90/30

x=3

y=3x-4=3*3-4=9-4=5

2 votes Thanks 1

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Answers & Comments

e92af6c1ae302fd4177c65d753d4f465

pomogite reshit3ad7c8d22d48ae65cc33da454977714a 47600

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reshite sistemu uravnenij metodom slozheniya 3xy4 15x5y70

dlya prigotovleniya domashnih konservov roditeli kupili na rynke 11 kg 800 g abrikoc9b1dd5482da78e019007a756d5c9d85 72682

dlya prigotovleniya domashnih konservov roditeli kupili na rynke 11 kg 800 g abriko

nuzhno prosklanyat po 3 vremenam pr simple pr continuos pr perfect pr perfec

vvodit chisla s klaviatury poka ne budet vvedeno chislo kratnoe 5

reshite 11111111111111

pomogite dam 100 ballov najti summu elementov massiva kratnoe 7 na paskale

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