c: \(\Leftrightarrow x-9=7\)
hay x=16
d: \(\Leftrightarrow x-9=70\)
hay x=79
c: \(\Leftrightarrow x-9=7\)
hay x=16
d: \(\Leftrightarrow x-9=70\)
hay x=79
140 : (x - 8) = 7
4(x + 41) =400
11(x - 9) = 77
5(x - 9) = 350
2x - 49 = 5.32
200 - (2x + 6) = 43
hôm này mình làm đề cương nên hoi nhiều bài tập mòng các bạn jup
1 . 4(x+41)=400
2. 11(x-9)=77
3. 5(x-9)=350
4. 2x-49=3.32
5. 200-(2x+6)=43
4) -23 +x = - (- 25) 5) -5 ≤ x < 6 | 6) 140 : (x – 8) = 7 7) -4(x + 41) = 400 8) 2x – 49 = 5 . 32 |
Bài 1: Tìm x [GIÚPPPPPPPPPPPPPPPPPPP]
1) 5 – (10 – x) = 7
2) - 32 - (x – 5) = 0
3) -12 + (2x – 9) + x= 0
4) 11 + (15 - x) = 1
5) 4 - (27 - 3) = x - (13 - 4)
6) 8 - (x - 10) = 23 - (- 4 +12)
7) 105 – 5(10 – 5x) = -20
8) (x -1)(8-2x)(3x+123) = 0
9) (x2 - 25)(x+ 10) = 0
10) x(x2+5) = 0
Bài 1 Tìm x biết
A.89-(73-x)=20
B.(x+7)-25=13
C.98-(x+4)=20
D.140÷(x-8)=7
E.4(x+41)=400
F.x-[42+(-28)]=-8
G.x+5=20-(12--7)
H.(x-11)=2.2 mũ 3+20:5
I.4(x-3)=7 mũ 2-1 mũ 3
J.2 mũ x+1 ×2 mũ 2014=2 mũ 2015
2x-49=5×3 mũ 2
L.3 mũ 2(x+14)-5 mũ 2 =5×2 mũ 2
M.6x+x=5 mũ 11 ÷ 5 mũ 9 + 3 mũ 1
N.7x-x=5 mũ 21 : 5 mũ 19 +3.2 mũ2 -7 mũ 0
O.7x-2x=6 mũ 17 ÷6 mũ 15 + 44 ÷ 11
P.3 mũ x =9
Q.4 mũ x =64
R.9 mũ x-1= 9
S.x mũ 4 = 16
T.2 mũ x : 2 mũ 5=1
2x-49=5.3² ,200-(2x+6)=4³,5(x-9)=300, 450:(x19)=50,198-(x+4)=120,140:(x-8)=7, 11(x-7)=77,(6x-39):3=281 tim x nha
1.
a) 2x + 5 = 34 : 32
b) ( 3x - 24 ) . 73 = 2.74
c) [ 3 . ( 42 - x ) + 15 = 23 . 3
d) 126 + ( 132 - x ) = 300
2.
a) 120 - ( x + 55 ) = 60
b) ( 7x - 11)3 = 25 .52 + 200
c) 2x + 2x+4 = 544
3.
a) 10 + 2x = 49 : 47
b) 70 - 5 ( x - 3 ) = 45
c) 4 + 95 : x = 143 : 142 - 23
Tim X
3) -12 + (2x – 9) + x= 0
4) 11 + (15 - x) = 1
5) 4 - (27 - 3) = x - (13 - 4)
6) 8 - (x - 10) = 23 - (- 4 +12)
7) 105 – 5(10 – 5x) = -20
8) (x -1)(8-2x)(3x+123) = 0
9) (x2 - 25)(x+ 10) = 0
10) x(x2+5) =
x -56 : 4= 16
101 +(36 –4x) =105
2(x-51) = 2.23+ 20
10 -(x –3): 2 = 72–110
2x –49 = 5.32
[(8x -12) : 4].33= 36
52x –3–2 . 52= 52. 3
(x3–7) : 4 = 5
[ ( 6x - 72 ) : 2 - 84 ] . 4 = 8.3
720 : [ 41 - ( 2x -5 ) ] = 3^3 . 8
x + ( x+1) + ...+ ( x+10) = 110