17x + 4x = 8^6 : 8⁶ + 2016⁰

21x = 1+ 1 

21x = 2

x = 2 : 21

x = \(\frac{2}{21}\)

TL : 17x\(\frac{2}{21}\)+ 4 x \(\frac{2}{21}\)= 8⁶: 8^{6 +} (2016)⁰ 

17x - 4x  = 8^2 + 1

(17 - 4 )x = 64 + 1

13x         = 65

          x  = 65 : 13

          x  = 5

x = 5

mình mới lại!!

17x - 4x = 8⁸:8⁶+(2016)⁰

<=> 8² + 1 = 13x

<=> 65 = 13x

<=> x = 5

\(17x-4x=8^8:8^6+\left(2016\right)^0\)

\(\Rightarrow13x=8^2+1\)

\(\Rightarrow13x=65\)

\(\Rightarrow x=5\)

Vậy \(x=5\)

Ta có: 17x-4x=8⁸:8⁶+(2016)⁰

\(\Rightarrow\)8²+1=13x

\(\Rightarrow\)65=13x

\(\Rightarrow\)x=5

bằng 5 đúng rùi mà ???

Bài làm

17x - 4x = 8⁸ : 8⁶ + ( 2016 )⁰ 

17x - 4x = 8² + 1

17x - 4x = 64 + 1

17x - 4x = 65

x( 17 - 4 ) = 65

x . 13 = 65

x        = 65 : 13

x        = 5

Vậy x = 5

# Học tốt #

17x-4x=8⁸:8⁶+(2016)⁰

13x=8²+1

13x=64+1

13x=65

    x=65:13

    x=5

vậy x=5

 13x=8²+1

13x=64+1

13x=65

   x=65:13

   x=5

mình cũng đang bí bài này ai giúp với

1.\(\left|9-7x\right|=5x-3\)

\(\Leftrightarrow\orbr{\begin{cases}9-7x=5x-3\\9-7x=-5x-3\end{cases}}\)

\(\Leftrightarrow\orbr{\begin{cases}-7x-5x=-9-3\\-7x+5x=-9-3\end{cases}}\)

\(\Leftrightarrow\orbr{\begin{cases}-12x=-12\\-2x=-12\end{cases}}\)

\(\Leftrightarrow\orbr{\begin{cases}x=-12:\left(-12\right)\\x=-12:\left(-2\right)\end{cases}}\)

\(\Leftrightarrow\orbr{\begin{cases}x=1\\x=6\end{cases}}\)

2.\(8x-\left|4x+1\right|=x+2\)

\(\Rightarrow\left|4x+1\right|=8x-x+2\)

\(\Rightarrow\left|4x+1\right|=7x+2\)

\(\Leftrightarrow\orbr{\begin{cases}4x+1=7x+2\\4x+1=-7x+2\end{cases}}\)

\(\Leftrightarrow\orbr{\begin{cases}4x-7x=2-1\\4x+7x=2-1\end{cases}}\)

\(\Leftrightarrow\orbr{\begin{cases}-3x=1\\11x=1\end{cases}}\)

\(\Leftrightarrow\orbr{\begin{cases}x=1:\left(-3\right)\\x=1:11\end{cases}}\)

\(\Leftrightarrow\orbr{\begin{cases}x=\frac{-1}{3}\\x=\frac{1}{11}\end{cases}}\)

a)

12 × 4 = 4 × 12

106 × 3 = 3 × 106

(17 × 5) × 2 = 17 × (5 × 2)

86 × 2 × 5 = 86 × (2 × 5)

b)

7 × 1 = 7

432 × 1 = 432

519 × 0 = 0

1 × 0 = 0

2 × 0 = 0

3 456 × 1 = 3 456