Question

46-{ 38- (- 2) + - 9 + ( 42 -18 + - 15 ) - (-7 )} =

Answer 1

Explicación paso a paso:

46−(38−(−2)−9+42−18−15−(−7))

=46−(40−9+42−18−15−(−7))

=46−(31+42−18−15−(−7))

=46−(31+24−15−(−7))

=46−(31+9−(−7))

=46−(40−(−7))

=46−47

=−1