Answer:
[tex]x = \frac{7}{9} [/tex]
Step-by-step explanation:
[tex]9x + 4 = 11 \\ \\ 1. \: 9x = 11 - 4 \\ 2. \: 9x = 7 \\ x = \frac{7}{9} [/tex]
Answer with explanation:
The given equation in one variable is:
→ 9 x +4 =11
Subtracting 4 from both sides
→9 x +4 -4=11 -4
→ 9 x=7
Taking log on both sides
→log ( 9 x)= log 7-----log having base 10 is considered.
→ log 9 + log x= log 7
→ 0.95424 + log x= 0.8450
→ log x=0.8450 - 0.9542
→ log x= -0.1092
[tex]\rightarrow\frac{\log x}{\log 10}=-0.1092\\\\\rightarrow \log x=-0.1092 \times \log 10\\\\\rightarrow \log x=\log 10^{-0.1092}\\\\\rightarrow x=10^{-0.1092}\\\\\rightarrow x=0.77767\\\\x=0.778[/tex]
