5х-19 _____= -6 решите пожалуйста, с проверкой 9. Created by kokoteeva. algebra-ru

5х-19 _____= -6 решите пожалуйста, с проверкой 9...

August 2022 1 21 Report

5х-19
_____= -6 решите пожалуйста, с проверкой
9

Answers & Comments

Македонский (5x-19)/9=-6
5x-19=-6*9
5x-19=-54
5x=-54+19
5x=-35
x=-35/5=-7
Проверка:
(5*(-7)-19)/9=-6
(-35-19)/9=-6
-54/9=-6
-54=-54 (равенство верное, значит x=-7)

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