Răspuns :
B) 13+x=48; x=48-13; x=35
C) 254+x=384; x=384-254; x=130
D) x+176=241; x= 241-176; x=65
E) 26=25+x; x= 26-25; x=1
F) x+105=105; x= 105-105; x=0
G) 38=x+18; x= 38-18; x=20
2. A) x-17=21; x=17+21; x=38
B) 29-x=18;29-18=x; x=11
C) x-115=79 ; x=79+115; x=194
D) 253-x=107; x= 253-107; x=146
E) x-341=593; x=593+341; x=934
F) 175=231-x ; x=231-175; x=56
G) 233=x-233; x= 233+233; x=466
H) 233=233-x; x=233-233; x=0
C) 254+x=384; x=384-254; x=130
D) x+176=241; x= 241-176; x=65
E) 26=25+x; x= 26-25; x=1
F) x+105=105; x= 105-105; x=0
G) 38=x+18; x= 38-18; x=20
2. A) x-17=21; x=17+21; x=38
B) 29-x=18;29-18=x; x=11
C) x-115=79 ; x=79+115; x=194
D) 253-x=107; x= 253-107; x=146
E) x-341=593; x=593+341; x=934
F) 175=231-x ; x=231-175; x=56
G) 233=x-233; x= 233+233; x=466
H) 233=233-x; x=233-233; x=0
1.B) 13+x=48
x=48-13
x=35
C) 254+x=384
x=385-254
X=131
D)x+176=241
X=241-176
X=65
E)26=25+x
X=26-25
X=1
F)x+105=105
X=105-105
X=0
G)38=x+18
X=38-18
X=20
2.c)x-115=79
X=79+115
X=194
D)253-x=107
X=253-107
X=146
E)x-341=593
X=593+341
X=934
F)175=231-x
X=231+175
X=406
G)233=x-233
X=233+233
X=466
H)233=233-x
X=233-233
X=0