Question
Solve: $9x + 5 = 4(x - 2) + 8$
✓
Answer
$9\text{x} + 5 = 4(\text{x}-2)+8$
$\Rightarrow9\text{x}+\text{5}=4\text{x}-8+8$
$\Rightarrow9\text{x}+\text{5}=4\text{x}$
$\Rightarrow9\text{x}-4\text{x}=-5$
$\Rightarrow5\text{x}=-5$
$\Rightarrow\text{x}=\frac{-5}{5}=-1$
$\therefore\text{x}=-1$
$\Rightarrow9\text{x}+\text{5}=4\text{x}-8+8$
$\Rightarrow9\text{x}+\text{5}=4\text{x}$
$\Rightarrow9\text{x}-4\text{x}=-5$
$\Rightarrow5\text{x}=-5$
$\Rightarrow\text{x}=\frac{-5}{5}=-1$
$\therefore\text{x}=-1$
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