Question

2·(– 4 + 1) + (8 – 1):7 =

Answer 1

$2 \times ( - 4 + 1) + (8 - 1) \div 7 = \\ 2 \times - 3 + (8 - 1) \div 7 \\ 2 \times - 3 + 7 \div 7 \\ - 6 + 7 \div 7 \\ - 6 + 1 \\ \bf = - 5$