a)66-x=44
=>x=66-44
=>x=22
vậy x=22
b)78+x=123
=>x=123-78
=>x=45
vậy x=45
c)123-x=34
=>x=123-34
=>x=89
vậy x=89
d)999+x=1000
=>x=1000-999
=>x=1
vậy x=1
k mình nha
a. 66 - x = 44
x = 66- 44
x = 22
b. 78 + x = 123
x = 123 - 78
x = 45
c. 123 - x = 34
x = 123 - 34
x = 89
d. 999 + x = 1000
x = 1000 - 999
x = 1
a) 66 - x = 44
x = 66 - 44
x = 22
b) 78 + x = 123
Tìm x :
a. 66 - x = 44
x=66-44
x=22
b. 78 + x = 123
x=123-78
x=45
c. 123 - x = 34
x=123-34
x=89
d. 999 +x = 1000
x=1000-999
x=1
a)x=66-44
=>x=22
b)x=123-78
=>x=45
c)x=123-34
=>x=89
d)x=1000-999
=>x=1
a. 66 - x = 44
x = 66 - 44 = 22
b. 78 + x = 123
x = 123 - 78 = 45
c. 123 - x = 34
x =123 - 34 = 89
d. 999 + x = 1000
x = 1000 - 999 = 1
x= 123 - 78
x= 45
c)123 - x = 34
x = 123 - 34
x = 89
a) 66 - x = 44
=> x = 66 - 44
Vậy x = 22
b) 78 + x = 123
=> x= 123 - 78
Vậy x= 45
c) 123 - x = 34
=> x= 123 - 34
Vậy x = 89
d) 999 + x = 1000
=> x= 1000 - 999
Vậy x= 1
a, 66 - x = 44
x = 66 - 44
x = 22
b, 78 + x = 123
x = 123 - 78
x = 45
c, 123 - x = 34
x = 123 - 34
x = 89
d, 999 + x = 1000
x = 1000 - 999
x = 1
a)66-x=44
=>x=66-44
=>x=22
vậy x=22
b)78+x=123
=>x=123-78
=>x=45
vậy x=45
c)123-x=34
=>x=123-34
=>x=89
vậy x=89
d)999+x=1000
=>x=1000-999
=>x=1
vậy x=1
a, 66 - x = 44
x = 66 - 44
x = 22
b, 78 + x = 123
x = 123 - 78
x = 45
c, 123 - x = 34
x = 123 - 34
x = 89
d, 999 + x = 1000
x = 1000 - 999
x = 1
a.66 - x = 44
x = 66 - 44
x = 22
b.78 + x = 123
x = 123 - 78
x = 45
c.123 - x = 34
x = 123- 34
x = 89
d.999 + x = 1000
x = 1000 - 999
x = 1
a,66-x=44 b,78+x=123 c123-x=34 d 999+x=1000
x=66-44 x =123-78 x=123-34 x=1000-999
x=22 x =45 x=89 x=1
a. 66 - x = 44
x = 66 - 44 =22
b. 78 + x = 123
x= 123 - 78 =45
c. 123 - x = 34
x=123 - 34 =89
d. 999 + x = 1000
x = 1000 - 999 = 1
chúc bạn học tôt!!!!!!!!!!!!!!!!!!!
a, 66 -x = 44
x = 66-44
x=22
b, 78 + x = 123
x = 123 -78
x = 45
c,123 - x = 34
x = 123-34
x= 89
d, 999 +x = 1000
x = 1000-999
x = 1
a) 66 - x = 44
x = 66 - 44
x = 22
b) 78 + x = 123
x = 123 - 78
x = 45
c) 123 - x = 34
x = 123 - 34
x = 89
d) 999 + x = 1000
x = 1000 - 999
x = 1
66-X=44 78+X=44 123-X=34 999+X=1000
X=66-44 X=78-44 X=123-34 X=1000-999
X=22 X=34 X= 49 X=1