Ta có: \(\left(327x+2^4\right)\cdot7^3=7\cdot7^5\)
\(\Leftrightarrow\left(327x+16\right)\cdot7^3=7^6\)
\(\Leftrightarrow327x+16=7^3\)
\(\Leftrightarrow327x+16=343\)
\(\Leftrightarrow327x=327\)
\(\Rightarrow x=1\)
(327.x + 24).73 = 7.75
=> (327.x + 24) = \(\frac{7\cdot7^5}{7^3}=7^3\)
=> 327.x + 24 = 73
=> 327.x = 73 - 24
=> 327.x = 327
=> x = 1
bn kia đúng :>>
\(\left(327\cdot x+2^4\right)\cdot7^3=7\cdot7^5\)
\(\left(327\cdot x+16\right)\cdot7^3=7^6\)
\(\left(327\cdot x+16\right)=7^6:7^3\)
\(\left(327\cdot x+16\right)=7^3\)
\(327\cdot x+16=343\)
\(327\cdot x=343-16\)
\(327\cdot x=327\)
\(x=327:327\)
\(x=1\)
