Уравнения ** тему Линейное уравнение с двумя переменными 7 класс Алгебра.2x+3y=7 найти...

Question

Уравнения на тему Линейное уравнение с двумя переменными 7 класс Алгебра.

2x+3y=7 найти чему равен y

5m-4n=-6

24x-3y-8=0 если y=0

-17x-34y+2=0 если y=0

Распишите полностью пожалуйста!

Comments

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Answer 1

24x-3y-8=0
24x=8+3y

x=(8+3y)÷24 (подставляем y=0)

x=

-17x-34y+2=0
-17x=34y-2
x=(34y-2)÷17

2x+3y=7
2x=7-3y
x=(7-3y)÷2

5m-4n=-6
5m=-6+4m
5m=4m-6
m=(4m-6)÷5

Comments

а где остальные

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где еще несколько?

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еще 3 уравнения пожалуйста!