Va rog ex. incercuite!
Dau stele+inimi+COROANA!!
CELE MAI BUNE RASPUNSURI!!!

114. a+b=20

a=b+2

b _

a _+2

20-2=18

b=9 (18:20)

a=11 (9+2)

116. M+I=15

M=I+5

I _

M _ +5

15-5=10

10:2=5(I)

M=5+5=10

118. a+b=16

b-4=a

b=a+4

a _

b _ +4

16-4=12

a=12:2

a=6

b=6+4

b=10

succes

114.a + b = 20probl.
a = b +2
_________
a = ?
b = ?

b |----|
}20
a |----|2|
1) 20 - 2 = 18 ( 2p.e. )
2) 18 ÷ 2 = 9 ( o p.e. , adica b )
3) 9 + 2 = 11 ( a )

V: 11 + 9 = 20 => A

116.M + I = 15baloane
M = I + 5
____________
M = ?
I = ?

I |----|
}15
M |----|5|

1) 15 - 5 = 10 ( 2p.e. )
2) 10 ÷ 2 = 5 ( o p.e.,adica I )
3) 5 + 5 = 10 ( M )
V: 10 + 5 = 15 => A

118.r + e = 16nuci
r= e - 4
__________
r = ?
e = ?

r |----|
}16
e |----|4|

1) 16 - 4 = 12 ( 2p.e. )
2) 12 ÷ 2 = 6 ( o p.e.,adica r )
3) 6 + 4 = 10 ( e )
V: 10 + 6 = 16 => A

Succes!!!❤❤❤