2 și 3 va rog urgent ........ajutorrrrr

2a) 10-18:(4+2)=10-18:6=10-3=7
b) 124-2×[150×20]:60=124-2×3000:60=124-6000:60=124-100=24
c) 800:[1180-(265+875)]:2=800:[1180-1140]:2=800:40:2=20:2=10

3.a) a+150:5=115
a+30=115
a=115-30
a=85
b) 191-b×8=47
b×8=191-47
b×8=144
b=144:8
b=18
c) (48×c+216)=27×40
(48×c+216)=1080
48×c=1080-216
48×c=864
c=864:48
c=18

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Laviniagrecu507 Laviniagrecu507 · Answer 2 · 2018-03-02T13:03:06+02:00

2.
a)10-18:(4+12:6)=
10-18:(4+2)=
10-18:6=
10-3=
=7 (Maria ,texte citite de ea)

b)124-2x[150x(4+16)]:60=
124-2x(150x20):60=
124-2x3000:60=
124-6000:60=
124-100=
=24 (Luca ,texte citite de el)

c)16x50:[1180-(265+5x175)]:2=
16x50:[1180-(265+875)]:2=
16x50:(1180-1140):2=
16x50:40:2=
=800:40:2=
=20:2=
=10 (Andrei , texte citite de el)

3.
a) a+75+75:5=115
a+75+15=115
a+90=115
a=115-90
a=25 (Joi)

b)
300-bx8-109=47
bx8-109=300-47
bx8-109=253
bx8=253-109
bx8=144
b=144:8
b=18 (Vineri)

Pe C de la exercitiul 3 nuu il stiu.