Explicación paso a paso:
PASÓ (1)
2-4+(-9)-(-5)+(-7)
2-4-9+5-7
-13
PASO (2)
(-8)+(-3)+(-5)-4-(-2)
-8-3-5-4+2
-18
PASO (3)
(-10)-(-10)+10-(6)+(-3)
10+6-3
13
PASO (4)
(-5)+(-2)-(-5)+6+(-15)
-5-2+5+6-15
-11
PASO (5)
30+(-8)-12+(-15)+10-(-15)
30-8-12-15+10+15
20
PASO (6)
(+20)+10-25+(-3)-(-12+100
Respuesta
14
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Explicación paso a paso:
PASÓ (1)
2-4+(-9)-(-5)+(-7)
2-4-9+5-7
-13
PASO (2)
(-8)+(-3)+(-5)-4-(-2)
-8-3-5-4+2
-18
PASO (3)
(-10)-(-10)+10-(6)+(-3)
10+6-3
13
PASO (4)
(-5)+(-2)-(-5)+6+(-15)
-5-2+5+6-15
-11
PASO (5)
30+(-8)-12+(-15)+10-(-15)
30-8-12-15+10+15
20
PASO (6)
(+20)+10-25+(-3)-(-12+100
Respuesta
14