Решите уравнения а)-12-(15+x)=28 б)(x+9)-18= -50 в)-(4-x)+15=12. Created by guseynli12. matematika-ru

Решите уравнения а)-12-(15+x)=28 б)(x+9)-18= -50 в)-(4-x)+15=12...

June 2022 1 12 Report

Решите уравнения а)-12-(15+x)=28 б)(x+9)-18= -50 в)-(4-x)+15=12

Answers & Comments

Darayana A) -12-(15+x)=28
-(15+x) = 28+12
-(15+x) = 40
15+x=-40
x=-40-15
x= -55

б) (x+9)-18=-50
x+9=-50+18
x+9=-32
x=-32-9
x=-41

в) -(4-x)+15=12
-(4-x)=12-15
-(4-x)=-3
4-x=3
x=4-3
x=1

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