Question

equações
$6.(4z + 2) + 7.( - 5z + 3) = 66$

Answer 1

6(4z+2)+7.(-5z+3)= 66

24z+12-35z+21= 66

-11z+33= 66

-11z= 66-33

-11z= 33

   z= 33/-11

   z= -3

Resposta → S= {-3}