\(5x-\left\{4x-2\left[4x-3\left(5x-2\right)\right]\right\}=182\) 

\(5x-\left[4x-2\left(4x-15x+6\right)\right]=182\) 

\(5x-\left[4x-2\left(-11x+6\right)\right]=182\) 

\(5x-\left(4x+22x-12\right)=182\) 

\(5x-\left(26x-12\right)=182\) 

\(5x-26x+12=182\) 

\(-21x=182-12\) 

\(-21x=170\) 

\(x=-\frac{170}{21}\)

5x - 3{4x - 2[4x - 3(5x - 2)]} = 5x - 12x + 6[4x - 3(5x - 2)] = -7x + 24x - 18(5x - 2) = 17x - 90x + 36 = -73x + 36 = 182

=> -73x = 182 - 36 = 146 => x = 146 : (-73) = -2

5x - 3{4x - 2[4x - 3(5x - 2)]} = 182

<=> 5x - 3[4x - 2(4x - 15x + 6)] = 182

<=> 5x - 3(4x - 8x + 30x - 12) = 182

<=>5x - 3(26x - 12) = 182

<=> 5x - 78x + 36 = 182

<=> - 73x = 182 - 36 = 146

<=> x = \(-\dfrac{146}{73}=-2\)

vậy x = -2

5x-3{4x-2[4x-3(5x-2)]}

= 5x - 3.[4x - 2(4x - 15x + 6)]

= 5x - 3.(4x - 8x + 30x - 12)

= 5x - 12x + 24x - 90x + 36

= -73x + 36 = 182

=> -73x = 182 - 36 = 146

=> x = 146 : (-73) = -2

\(VT=-\left(73x-36\right)\)

\(\Leftrightarrow-\left(73x-36\right)=182\)

\(\Leftrightarrow36-73x=182\)

\(\Leftrightarrow-73x=182-36\)

\(\Leftrightarrow-73x=146\)

\(\Leftrightarrow x=-2\)

5x -3 { 4x - 2 [ 4x - 3 (5x - 2)]} = 182 
<=> 5x -3 { 4x -2 [ 4x - 15x +6 ]} =182 
<=> 5x -3 { 4x -2 [ -11x +6 ]} =182 
<=> 5x -3 { 4x + 22x -12 } = 182 
<=> 5x -3 { 26x -12 } =182 
<=> 5x - 78x + 36 = 182 
<=> -73x = 146 
<=> x= -2

Mình nghĩ là vậy :

5x -3 { 4x - 2 [ 4x - 3 (5x - 2)]} = 182 
<=> 5x -3 { 4x -2 [ 4x - 15x +6 ]} =182 
<=> 5x -3 { 4x -2 [ -11x +6 ]} =182 
<=> 5x -3 { 4x + 22x -12 } = 182 
<=> 5x -3 { 26x -12 } =182 
<=> 5x - 78x + 36 = 182 
<=> -73x = 146 
<=> x= -2

\(VT=-\left(73x-36\right)\)

\(\Leftrightarrow-\left(73x-36\right)=182\)

\(\Leftrightarrow36-73x=182\)

\(\Leftrightarrow-73x=182-36\)

\(\Leftrightarrow-73x=146\)

\(\Leftrightarrow x=-2\)

kết bạn với tớ với

ai kết bạn với tớ

tớ k cho

b) 5x -3 {4x-2 [4x-3.(5x-2)]} =182 <=> 5x - (12x -6 [4x-15x+6])=182 
<=> 5x - (12x-24x+90x-36)=182 <=> 5x-12x+24x-90x+36 =182 
-73x = 146 => x= -2 
 

5x - 3{4x - 2[4x - 3(5x - 2)]} = 5x - {12x - 6[4x - (15x - 6)]} = 5x - 12x + 6(6 - 11x) = 36 + 66x - 7x = 36 + 59x = 182

=> 59x = 182 - 36 = 146 => x = 146/59

a, \(4\left(18-5x\right)-12\left(3x-7\right)=15\left(2x-16\right)-6\left(x+14\right)\)

\(\Rightarrow72-20x-36x+84=30x-240-6x-84\)

\(\Rightarrow-20x-36x-30x+6x=-240-84-72-84\)

\(\Rightarrow-80x=-480\Rightarrow x=6\)

b, \(5\left(3x+5\right)-4\left(2x-3\right)=5x+3\left(2x+12\right)+1\)

\(\Rightarrow15x+25-8x+12=5x+6x+36+1\)

\(\Rightarrow15x-8x-5x-6x=36+1-25-12\)

\(\Rightarrow-4x=0\Rightarrow x=0\)

c, \(2\left(5x-8\right)-3\left(4x-5\right)=4\left(3x-4\right)+11\)

\(\Rightarrow10x-16-12x+15=12x-16+11\)

\(\Rightarrow10x-12x-12x=-16+11+16-15\)

\(\Rightarrow-14x=-4\Rightarrow x=\dfrac{2}{7}\)

d, \(5x-3\left\{4x-2\left[4x-3\left(5x-2\right)\right]\right\}=182\)

\(\Rightarrow5x-3\left[4x-2\left(4x-15x+6\right)\right]=182\)

\(\Rightarrow5x-3\left(4x-8x+30x-12\right)=182\)

\(\Rightarrow5x-12x+24x-90x+36=182\)

\(\Rightarrow-73x=182-36\)

\(\Rightarrow-73x=146\Rightarrow x=-2\)

Chúc bạn học tốt!!!

Thực hiện phá ngoặc lần lượt và rút gọn VT = -73x + 36.

Giải phương trình -73x + 36 = 182 thu được x = -2.