Question

96-(3xix2)=78
36+(63:o-3x2)=39
(u:3+14:2)-36=8


Ma poate ajuta cineva???
Caut variantă de cls a-III-a ! ​

Answer 1

Sper ca te am ajutat!!!!!

Answer 2

96 - (3 x i x 2) = 78
96 - (6 x i) = 78
96 - 78 = 6 x i
18 = 6 x i
18:6 = i
i = 3
verif: 96-(3x3x2)=78
96-(9x2)=78
96-18=78
78=78 (A)

36+(63:o-3x2)=39
36+(63:o-6)=39
63:o-6=39-36
63:o-6=3
63:o=3+6
63:o=9
63:9=o
o=7
verif:36+(63:7-3x2)=39
36+(9-6)=39
36+3=39
39=39 (A)

(u:3+14:2)-36=8
(u:3+7)=8+36
(u:3+7)=44
u:3=44-7
u:3=37
u=37x3
u=111
verif: (111:3+14:2)-36=8
(37+7)-36=8
44-36=8
8=8 (A)