`4^(x - 3) -8 = 56`
`=> 4^(x-3) = 56 + 8`
`=> 4^(x-3)=64`
`=>4^(x-3)=4^3`
`=>x-3=3`
`=>x=3+3`
`=>x=6`
Vậy: `x=6`
`4^(x - 3) -8 = 56`
`=> 4^(x-3) = 56 + 8`
`=> 4^(x-3)=64`
`=>4^(x-3)=4^3`
`=>x-3=3`
`=>x=3+3`
`=>x=6`
Vậy: `x=6`
5) 6x – 5 = 3 + 4x 6) x – (17 – x) = x – 7
7) 9 – 25 = (7 – x) – ( 25 + 7) 8) 10 – 2.(4 – 3x) = - 4
9) (-12)2
.x = 56 + 10. 13x 10) 2x2
– 1 = 49
1.tính
a) (-48):2+26x(-2)
b) (-96):(-2)+11x(-)
c) (-58)x(-2)+(-5)x(-8)
d) 3x(-7)-4x(-3)
e) (-8)x(-4)+21x2
g) (-16)+32+(-18)x(-2)
i) (-48)+(-2)x7+(-56):2+4x(-2)
h) (-16)-18+(-11)x(-2)+(-21)
k) -18-(-3)x2+32-(-58)
m) -2x8-72+31x(-2)
Giúp mình với mình tick cho
1.tính
a) (-48):2+26x(-2)
b) (-96):(-2)+11x(-)
c) (-58)x(-2)+(-5)x(-8)
d) 3x(-7)-4x(-3)
e) (-8)x(-4)+21x2
g) (-16)+32+(-18)x(-2)
i) (-48)+(-2)x7+(-56):2+4x(-2)
h) (-16)-18+(-11)x(-2)+(-21)
k) -18-(-3)x2+32-(-58)
m) -2x8-72+31x(-2)
Giúp mình với mình tick cho
1.tính
a) (-48):2+26x(-2)
b) (-96):(-2)+11x(-)
c) (-58)x(-2)+(-5)x(-8)
d) 3x(-7)-4x(-3)
e) (-8)x(-4)+21x2
g) (-16)+32+(-18)x(-2)
i) (-48)+(-2)x7+(-56):2+4x(-2)
h) (-16)-18+(-11)x(-2)+(-21)
k) -18-(-3)x2+32-(-58)
m) -2x8-72+31x(-2)
Giúp mình với mình tick cho
5. 91/27 - 56/9 : x = 154/7
4. 1 - ( 43/8 + x - 173/24 ) : 50/3 = 0
-8/5 : 4/5 + | x | = 0,125 * ( -4 )| x + 1/3 | * 17/5 - 12/5 = 21/2x - 2/3x = 7/12 + 3/4x
1. Tìm x biết
a. 8x +56 : 14 = 60
b. 52x-3- 2.52 = 52 . 3
c. 41- 2x+1=9
d.32x-4-x0= 8
g) 65-4x+2=20140
i. 120+ 2.(4x-17) =214
Bài 6 . Tìm x biết: 1) 58 + 7x = 100 AI LM ĐC MÌNH CHO 20 XU
2) 101 +(36 – 4x) =105
3) 3x – 7 = 28
4) ( x – 12):12=12
5) x – 56 : 4= 16
6) (3.x-2 4 ).73=2.74
7) 71 – (33 + x) = 26
8) = 7 10) 4(x + 41) = 400
9) 45 – (x + 9):2 = 6
11) 2. (x + 7) – 25 = 13
13) 2(x- 51) = 2.23 + 20
15) 450 : (x – 19) = 50
17) 10 - (x – 3): 2 = 72 – 1 10
19) 2x + 2 – 2 x = 48
8) 140 : (x – 12) 5(x – 9) = 350
14) 2x – 49 = 5.32
16) 200 – (2x + 6) = 43
18) 135 – 5.(x + 4) = 35
20) (3x – 5)3 – 1 = 26
1) (5¹⁹⁸⁶-5¹⁹⁸⁵) : 5¹⁹⁸⁵
2) (7⁸⁴⁶+7⁸⁴⁷) : 7⁸⁴⁶
3) (9²⁰¹⁸-3⁴⁰³⁶) : 6²⁰⁰⁶
4) (7⁸⁰.8⁷⁰-56⁷⁰) : 56⁷⁰
5) 4⁴⁰¹⁶:(4⁴⁰¹⁷-4⁴⁰¹⁶)
6) (12²⁰⁶.2²⁰⁷-24²⁰⁶) :24²⁰⁶
7) (5²-24)⁸⁹⁴⁶+4³⁰:2⁶⁰
8) (37.8¹⁰⁰⁷-7.2³⁰²¹) :8¹⁰⁰⁷
-Mình cần gấp ạ
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
bài 1
a) 26+5x=3x-56
b)13/4x-7/6x=-5/12+5/3
c)x/ (-5/14)+7/2=-1 và 2/3