a) (x - 5)*(x+1)=0
б) (x - 2) * (x - 6) *(x+5)=0
с) 4х/5 - х - 3 /8 =х - 1 /2
г) 15*(2х +1) -(10х - 5)=18

Решите уровнения
{5х + у = - 2
{- 2х - у =5

{3х - 6у = 42
{-4х + у =0
Решите систему уравнений ​
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