Question

x+12=21+54

Answer 1

k/q la 63

Answer 2

x + 12 = 21 + 54

x + 12 = 75 

x         = 75 - 12

x         = 63

Answer 3

x + 12 = 21+54

x + 12 = 75

x    = 75 - 12

x    = 63

Answer 4

x + 12 = 75

x = 75 - 12

x = 63

Answer 5

x + 12 = 75

x = 75 - 12

x = 63

Answer 6

x + 12= 21+54

x+12 = 75

x= 75-12

x=63

Answer 7

x+12=21+54

x+12=75

x       =75-12

x        = 63

Answer 8

là 63 nha

Answer 9

x=63 nha bn

Answer 10

kq là 63

Answer 11

x + 12 = 75

x         = 75 - 12

x         = 63

Answer 12

x+12=21+54

x+12=75

x      =75-12

x      =63

Answer 13

x+12=75

x=75-12

x=63