Question

Escreve esse pra mim Resolva as expressões:
a) −6 + 5 + 12 − 7
b) (+10) − (+8) − (−18) + (−6)
c) (−1) + (−7) ∶ (−2)
d) (−6)² + (−3) *​

Answer 1

$a) \: ( - 6) + 5 + 12 - 7 = \\ ( - 1) + 5 = \\ 4 \\ \\ b) \: 10 - 8 - ( - 18) - ( - 6) =\\ 2 - ( - 12) =\\ 14 \\ \\ \\c) \: ( - 1) + ( - 7) \div ( - 2) = \\ ( - 8) \div ( - 2) = \\ 4 \\ \\ d \:) \: {( - 6)}^{2} + ( - 3) = \\ 36 + ( - 3) = \\ 33$