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x= -350/2 = -175
24)1740 =3x
x =1740/3 = 580
25) x+ (-86) = 200
x =200+86 = 286
26) 4x - 30 = 130
4x = 130 +30
x=160/4 = 40
27) 6x + 120 = -60
6x = -60-120
x = -180/6 =- 30
28)1000 -5x = -500
-5x = -500-1000
x= 1500/5 = 300
29) 2Mar= Mig + 16 si Mig = 18
Marcela = (18 + 16)/2 =17 años
30) Juan = David + 150
J+ D = 1960
(D+ 150) + D = 1960
2D = 1960 - 150
D = 1810/2 = 905 y J= 1055
31) Mateo - 185000 = 423000
Mateo = 185000 + 423000 =608000
32) Gaseosa + 3perros = 31000 $ si la G= 4000
4000 + 3p = 31000
3p= 31000-4000 = 27000
p= 27000/3 = 9000 $ cuesta el perro
33) x+x+1+x+2+x+3=326
4x+6=326
4x = 326-6
x = 320/4 = 80
80,81,82,83
...........Kd