Question

efetue e reduza os termos semelhantes
-2 (3×-1)-(×+4)

Answer 1

$- 2(3x - 1) - (x + 4) = - 6x + 2 - x - 4 = \\ = -7x - 2$

Answer 2

$- 2(3x - 1) - ( x + 4) \\ - 6x + 2 - x - 4 \\ - 6x - x + 2 - 4 \\ - 7x - 2$