2. 9x-54=45-162 olduguna k actir? A) -7 B) -2 c) 0 D) 2 E) 3

To solve the equation $9x - 54 = 45 - 162$, we can start by simplifying both sides of the equation.<br /><br />On the left side, we have $9x - 54$. On the right side, we have $45 - 162$, which simplifies to $-117$.<br /><br />So, the equation becomes $9x - 54 = -117$.<br /><br />Next, we can isolate the variable $x$ by adding $54$ to both sides of the equation:<br /><br />$9x - 54 + 54 = -117 + 54$<br /><br />This simplifies to $9x = -63$.<br /><br />Finally, we can solve for $x$ by dividing both sides of the equation by $9$:<br /><br />$\frac{9x}{9} = \frac{-63}{9}$<br /><br />This simplifies to $x = -7$.<br /><br />Therefore, the correct answer is A) $-7$.