Question

-{18+3[4-(3+1)-2(4-6)+12] +15}

Answer 1

−(18+3(4−(3+1)−2(4−6)+12)+15)

=−(18+3(4−4−2(4−6)+12)+15)

=−(18+3(0−2(4−6)+12)+15)

=−(18+3(0−(2)(−2)+12)+15)

=−(18+3(0−(−4)+12)+15)

=−(18+3(4+12)+15)

=−(18+(3)(16)+15)

=−(18+48+15)

=−(66+15)

=−81

Answer 2

Explicación paso a paso:

- {18 + 3 [4 - (3 + 1) - 2 (4 - 6) + 12] + 15}

- {18 + 3 [4 - (4) - 2 (- 2) + 12] + 15}

- {18 + 3 [4 - 4 + 4 + 12] + 15}

- {18 + 3 [ 4 + 12] + 15}

- {18 + 3 [16] + 15}

- {18 + 48 + 15}

- {81}

Rpta: - 81