Question

qual a resposta da equaçao 6.(4x+2)+7.(-5x+3)=66 ?

Answer 1

$6.(4x+2)+7.(-5x+3)=66 \\ 24x+12-35x+21=66\\ -11x=66-21-12\\ -11x=33\\ \\ \boxed{x=-3}$

Answer 2

6 (4x + 2) + 7 ( - 5x + 3) = 66
24x + 12 - 35x + 21 = 66 
24x - 35x = 66 - 21 - 12
- 11x  = 33 ( - 1)
11x = - 33
x = - 33/11
x = - 3

V = { - 3 }