a) \(5x+73.21=73.26\)
\(5x+21=26\)
\(5x=26-21\)
\(5x=5\)
\(x=1\)
Vậy x = 1
b) \(2x+69,2=69,4\)
\(2x=0,2\)
\(x=\frac{1}{10}\)
Vậy x = \(\frac{1}{10}\)
Các câu hỏi tương tự
a) 91 - x = 90
b) x - 73 . 21 = 73 . 26
c) 6 . ( x +11 ) = 0
d) 2x - 12 - x = 9
a (2x - 6) . (3x - 18) = 0
b 5x + 73 . 21 = 73 . 26
c 2x - 12 - x =0
1 tháng 10 2021 lúc 21:37
Bài3:Tìm x:a) 71 – (33 + x) 26b) (x + 73) – 26 76c) 45 – (x + 9) 6d) 89 – (73 – x) 20e) 4(x + 41) 400f) 11(x – 9) 77g) (x + 7) – 25 13h) 198 – (x + 4) 120i) 5(x – 9) 350j) 2x – 49 5.32k) 25 + 3(x – 8) 106l) 32(x + 4) – 52 5.22m) 200 – (2x + 6) 43n) 2(x- 51) 2.23 + 20o) 450 : (x – 19) 50p) 4(x – 3) 72 – 110q) 156 – (x+ 61) 82r) (x-35) -120 0
Đọc tiếp
Bài3:Tìm x:
a) 71 – (33 + x) = 26 b) (x + 73) – 26 = 76 c) 45 – (x + 9) = 6 d) 89 – (73 – x) = 20 e) 4(x + 41) = 400 f) 11(x – 9) = 77 | g) (x + 7) – 25 = 13 h) 198 – (x + 4) = 120 i) 5(x – 9) = 350 j) 2x – 49 = 5.32 k) 25 + 3(x – 8) = 106 l) 32(x + 4) – 52 = 5.22 | m) 200 – (2x + 6) = 43 n) 2(x- 51) = 2.23 + 20 o) 450 : (x – 19) = 50 p) 4(x – 3) = 72 – 110 q) 156 – (x+ 61) = 82 r) (x-35) -120 = 0 |
A, ( x - 78 ) . 26 = 0
B, 39 . ( x - 5 ) = 39
C, ( x -14 ) : 2 = 3
D, ( 30 - x ) . 4= 92
E, 45 . ( 91 - x )= 90
F, ( 2x - 6 ) . ( 3x -18 = 0
G, 5x + 73 . 21 = 73 .26
H, 2x - 12 -x = 0
mongg các bạn giúp dùm mình
TÌm x biết : 2x +7/6+13/12+21/20+31/30+43/42+57/56+73/72+91/90 = 0
tìm x
2x +7/6+13/12+21/20+31/30+43/42+57/56+73/72+91/90=10
Tìm x biết
a) 71 - (33+ x) = 26
b) (x +73 ) - 26=76
Tìm x , biết :
b> 2x + 7/6 + 13/12 + 21/20 + 31/30 + 43/42 + 57/56 + 73/72 + 91/90 = 10
Tìm x thuộc Z:
14) 24 ( 2x + 11)2 = 42
15) 73x - 2 - 3. 73 = 73. 4