Помогите решить уровнения 1) 8x-5=x-40. 2) 7x+21x= -3. 3) 9+13y=35+26y. Created by kica13. matematika-ru

Помогите решить уровнения 1) 8x-5=x-40. 2) 7x+21x= -3. 3) 9+13y=35+26y...

August 2022 1 3 Report

Помогите решить уровнения 1) 8x-5=x-40. 2) 7x+21x= -3. 3) 9+13y=35+26y

Answers & Comments

DC19 1) 8x-5=x-40
8x-x=-40+5
7x=-35
x=-35/7
x=-5

2) 7x+21x=-3
28x=-3
x=-3/28
(запиши как дробь)

3) 9+13y=35+26y
13y-26y=35-9
-13y=26
y=26/(-13)
y=-2

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