3 ( x + 2 ) = 35 - 5 = 30
x + 2 = 30 : 3 = 10
x = 10 - 2 = 8
35-3(x+2)=5
3(x+2)=35-5
3(x+2)=30
x+2=30:3
x+2=10
x=10-2
x=8
1) 27,56 x 35 + 27,56 x67- 27,56 x2
2) 4 x 35 x 25 x 5 x2
3) ( 32 x 18 - 16 x 36 ) x( 1+3+5+7+......+1001)
4) 3/5 + 2/5 x 1/2 - 2/3 x 3/4
5) 27 x 13 + 35 x 27 - 12 x 9
6) 33/5 x 15/11 + 22/27 x 81/44 - 3/5 : 9/5
a) x - = b) . c)
) : e) f) .
x
x
d x x x x x
3 13 2 4 3 7 2
1 3
5 25 3 5 10 15 3
4 5 1 7 2 11 1 1
3 15 1 3
5 7 6 5 5 2 3 2
Tìm x, biết:
a) (x - 3.5).12 = 0;
b) 35. (x - 10) = 35;
c) ( x - 5): 3 + 3 = 24
d) ( x - 4) : 3 - 2 = 100
c) 25.(2.x - 4).12 = 0
d) (x - 4) : 6 - 5 = 10
Tìm x, biết:
a) (x - 3.5).12 = 0; b) 35. (x-10) = 35;
c) ( x -5): 3 + 3 = 24 d) ( x- 4) : 3 - 2 = 100
c) 25.(2.x - 4).12 = 0 d) (x- 4) : 6 - 5 = 10
Tìm x :
a ) 35 + 5 * x =70 b ) 35 - 5 * x = 20 c) 1/3 + x = 2 1/2 d ) 3/2 - x = 2/3
Bài 5. Tìm x biết :
a. (5.x + 3) : 4 – 16 = 6
b. 7(23 – 3.x) : 2 – 35 = 35
Tìm x, biết:
a) (x - 3.5).12 = 0;
b) 35. (x-10) = 35;
c) ( x -5): 3 + 3 = 24;
d) ( x- 4) : 3 - 2 = 100.
Tìm x ( 3^2 - 2 ) ( x - 12 ) + 35 = 5^2 + 279 : 3^2
tìm x
(3^2-2)x(x-12+35=5^2+279:5
260 : (x-+4) = 5 ( 2^3 + 5)-3(3^2+2^2)
7^x-3 = 343
(x-3)^2017 = (x-3)^2016
(2^3 + 3)x (x-5) +14= 5^2+124:2^2
