Question

-1 - (-5).(-3) + (-4).3 : (-4)

Answer 1

$\LARGE\tt{} - 1 - ( - 5) \times ( - 3) + ( - 4) \times 3 \div ( - 4) \\ \LARGE\tt{} - 1 + 5 \times ( - 3) + ( - 4) \times 3 \div ( - 4) \\ \LARGE\tt{} - 1 + 5 \times ( - 3) + 1 \times 3 \\ \LARGE\tt{} - 1 + 5 \times ( - 3) + 3 \\ \LARGE\tt{} - 1 - 15 + 3 \\ \LARGE\tt{}\LARGE\tt{} \boxed{ - 13}$

${\large\boxed{\boxed{  { \large \tt Bons~Estudos }}}}$

Answer 2

Explicação passo-a-passo:

$- 1 - ( - 5).( - 3) + ( - 4).3 \div ( - 4) =$

$- 1 -15 - 12 \div - 4 =- 16 + 3 = -13$