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1) 3[8+2(7*9)-9]=
3[8+2*63-9]=
3[8+126-9]=
3*125=
375
2) 3*8-9+2=
24-9+2=
15+2=
17
3) 15(8*9+2-16)=
15(72+2-16)=
15(74-16)=
15(58)=
870
4) (10÷2+9*5-8)+9=
(5+45-8)+9=
42+9=
51
5) 8-2*5÷2+36=
8-1*5+36=
8-5+36=
39
6) (8*9+15÷5-2)8=
(72+3-2)8=
73*8=
584
7) (9+2-6*5)/5=
9+2-30/5=
-19/5=
3.8
Saludos;
3(10) - (5)
30 - 5
25
[(2)(3)(5):(-3) ] + [ (18):(-3) + 7]
[(6)(5):(-3) ] + [ (-6) + 7]
[(30):(-3)] - [-6+7]
[-10] - [+1]
-10 -1
-11
[3] + [1] - 25
3+1-25
4-25
-21
3 - 2 - 8
3 - 10
-7
{ + [ - ( -4 ) ] } - { - [ - ( -4 ) ] } + { - [- ( +4 ) ] }
{ + [ +4 ] } - { - [ +4 ] } + { - [- 4 ] }
{ +4 } - { -4 } + { + 4 }
+ 4 + 4 + 4
+12