Question

Ayuda, es para hoy... necesito la solución de:


a) -3+7(-9)+8+12+(-15)+1+(-7)+9+3


b) (3+9)-(8+(4))-(3+(-9))+(-7+12)


c) (-4+9+(-5))+(-7+9+12)-(6+(-12)+17)


d) -1-2-3-4-5+5+4+3+2+1


e) (-24+17-9+(-3+(-1))+(17+(-5))-(-12+(-13))


Por favor

Answer 1

Respuesta:

a)-3+(7 7)(-9 9)+8+12-15+1-7 7+9 9+3

=-3+-63+8+12-15+1-7 7+9 9+3

=-66+8+12-15+1-7 7+9 9+3

=-58+12-15+1-7 7+9 9+3

=-46-15+1-7 7+9 9+3

=-61+1-7 7+9 9+3

=-60 60-7 7+9 9+3

=-67+9 9+3

=-58+3

=-55

b)3+9 9-(8+4 4)-(3-9 9)-7 7+12

=12-(8+4 4)-(3-9 9)-7 7+12

=12-12-(3-9 9)-7 7+12

=0 0-(3-9 9)-7 7+12

=0 0-(-6 6)-7 7+12

=6 6-7 7+12

=6 6+5 5

=11

c)-4 4+9 9-5 5-7 7+9 9+12-(6 6-12+17)

=5 5-5 5-7 7+9 9+12-(6 6-12+17)

=0 0-7 7+9 9+12-(6 6-12+17)

=0 0+2+12-(6 6-12+17)

=0 0+14-(6 6-12+17)

=14-(6 6-12+17)

=14-(-6 6+17)

=14-11

=3

d)-1-2-3-4 4-5 5+5 5+4 4+3+2+1

=-3-3-4 4-5 5+5 5+4 4+3+2+1

=-6 6-4 4-5 5+5 5+4 4+3+2+1

=-10-5 5+5 5+4 4+3+2+1

=-15+5 5+4 4+3+2+1

=-10+4 4+3+2+1

=-6 6+3+2+1

=-3+2+1

=-1+1

=0

e)-24+17-9 9-3-1+17-5 5-(-12-13)

=-7 7-9 9-3-1+17-5 5-(-12-13)

=-16-3-1+17-5 5-(-12-13)

=-16+-4 4+17-5 5-(-12-13)

=-20+17-5 5-(-12-13)

=-20+12-(-12-13)

=-8-(-12-13)

=-8-(-25)

=17

Explicación paso a paso: