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\(740:\left(x+10\right)=102-26\)

\(\Leftrightarrow740:\left(x+10\right)=76\)

\(\Leftrightarrow x+10=\dfrac{740}{76}\)

\(\Leftrightarrow x=-\dfrac{5}{19}\)

a) 52x - 3 - 2 . 52 = 52 . 3

x - 3/52 - 2 = 3

x = 3 + 2 + 3/52

x = 263/52

b) 740 / (x + 10) = 102 - 2 . 13

740 / (x + 10) = 76

x + 10 = 740 / 76

x + 10 = 185/19

x = 185/19 - 10

x = -5/19

c) 65 - 4x + 2 = 20140

65 - 4x = 20140 - 2

65 - 4x = 20138

4x = 65 - 20138

4x = -20073

x = -20073/4

d) 120 + 2 . (3x - 17) = 214

60 + 3 . x - 17 = 107

20 + x - 17/3 = 107/3

20 + x = 107/3 + 17/3

20 + x = 124/3

x = 124/3 - 20

x = 64/3

e) 41 - 2x + 1 = 9

42 - 2x = 9

21 - x = 9/2

x = 21 - 9/2

x = 33/2

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\(3^2x-4-x^0=8\)

9x-4-1=8

9x-5=8

9x=13

=>x=\(\frac{13}{9}\)

trả lời nhanh giúp tôi

a) (5x - 12 ) : 4 = 3¹⁸ : 3¹⁵

( 5x - 12 ) : 4 = 3³

( 5x - 12 ) : 4 = 27

5x - 12 = 108

5x = 120

x = 24

b) 5x³ - 10² = 35

5x³ - 100 = 35

5x³ = 135

x³ = 27

x³ = 3³

=> x = 3

c) 65 - 4^x+2 = 2018⁰

65 - 4^x+2 = 1

4^x+2 = 64

4^x+2 = 4³

x + 2 = 3

=> x = 1

d) 2^x+1 - 2^x = 32

2^x . ( 2 - 1 ) = 32

2^x . 1 = 32

2^x = 32

2^x = 2⁵

=> x = 5

e) 30 - [ 4( x - 2) + 15 ] = 3

4(x-2) + 15 = 27

4( x-2) = 12

x - 2 = 3

x = 5

f) 740 : ( x + 10 ) = 10² - 2.13

740 : ( x + 10 ) = 100 - 26

740 : ( x + 10 ) = 74

x + 10 = 10

x = 0

\(a,[\left(8.x-12\right):4].3^3.3=3^6.6\)

\(\left(8x-12\right):4=54\)

\(8x-12=216\)

\(8x=228\)

\(x=28,5\)

\(b,41-2^{x+1}=9\)

\(2^{x+1}=41-9\)

\(2^{x+1}=32\)

\(2^{x+1}=2^5\)

\(\Rightarrow x+1=5\)

\(\Rightarrow x=4\)

a) 75 : ( x - 18 ) = 5² = 25

=>       x - 18 = 3

=>       x = 21

b) 740 : ( x - 10 ) = 10² - 2 x 13

    740 : ( x - 10 ) = 100 - 26 = 74

=>           x - 10 = 10

=>            x = 20

c) ( 2x - 5 )³ = 8 = 2³

=>  2x - 5 = 2

=>  2x = 7

=>     x= 7/2

d) ( 15 - 6x ) x 3⁵ = 3⁶

=> ( 15 - 6x ) = 3⁶ : 3⁵ = 3

=>   6x = 12

=>     x = 2

1+1= ??????