Question

A raiz da equação x-3 (x-1) = x/3 +2 é igual a?

Answer 1

Olá!

x-3(x-1)=x/3+2
x-3x+3=x/3+2
-2x+3-2=x/3
-2x+1=x/3
3(-2x+1)=x
-6x+3=x
-6x-x= -3
-7x= -3
-x= -3/7      x(-1)
x= 3/7

Verificando
x-3(x-1)=x/3+2
3/7-3(3/7-1)=3/7/3+2
3/7-9/7+3=3/7*1/3+2
-6/7+3=3/21+2
3(-6)+21(3)=3+21(2)
-18+63=3+42
45=45

Answer 2

x-3 (x-1) = x/3 +2
x-3x+3=x/3+2
-2x+3-2=x/3
-2x+1=x/3
3(-2x+1)=x
-6x+3=x
-6x-x=-3
-7x=-3
x=-3/-7=3/7