Question

resuelvo las siguientes operaciones
a) - 12 + 26 - 8 + 16 + 23 -20 + 10 =


b) - 15 + (-6) - (-5) + (-9) - (+7) + (-10) + 7 - 12 =


c) [ - 6 + (4 + 2) - (-9) ] - [ (- 4) - (+ 7 - 5) + (-12)] + 7 - 15 =


d) 4+ {[ -7 + (3 + 2) - (-2)] + [(-3) - (+8 - 8) + (-10) ] } + 10 - 3 =

Answer 1

Respuesta:

♫HOLA♫

Solución:

A)

$- 12 + 26 - 8 + 16 + 23 -20 + 10 \\\\75-40\\\\35$

B)

$- 15 + (-6) - (-5) + (-9) - (+7) + (-10) + 7 - 12 \\\\-15-6+5-9-7-10+7-12\\\\ 12-59\\\\-47$

C)

$[ - 6 + (4 + 2) - (-9) ] - [ (- 4) - (+ 7 - 5) + (-12)] + 7 - 15\\\\(-6+6+9)-(-4-(2)+(-12))+7-15\\\\(9)-(-4-2-12)+7-15\\\\(9)-(-18)+7-15\\\\9+18+7-15\\\\34-15\\\\19$

D)

$4+ (( -7 + (3 + 2) - (-2)] + [(-3) - (+8 - 8) + (-10) ] } + 10 - 3\\\\4+(-7+5-(2))+(-3-0-10)+10-3\\\\4+(-7+5+2)+(-13)+10-3\\\\4+(0)-13+10-3\\\\4-13+10-3\\\\14-16\\\\-2$

Explicación paso a paso:

Hola amigo o amiga espero que te ayude :) ♫