To complete the equation \(5x + 12 = x + 9\) so that it has no solution, we need to manipulate it in a way that creates a contradiction.
Let's start with the original equation:
\[ 5x + 12 = x + 9 \]
Now, we can move \(x\) from the right side to the left side:
\[ 5x - x + 12 = 9 \]
This simplifies to:
\[ 4x + 12 = 9 \]
Next, we can isolate \(4x\):
\[ 4x = 9 - 12 \]
Which simplifies to:
\[ 4x = -3 \]
Dividing both sides by 4 gives us:
\[ x = -\frac{3}{4} \]
Now we want to adjust the equation to ensure it has no solutions. A common way to do this is to set it up so that the left-hand side (LHS) and right-hand side (RHS) are equal but lead to a false statement.
One way to achieve this is to introduce a term that cancels out:
Let's manipulate the equation so that both sides equal a contradictory statement, for example:
\[ 5x + 12 = x + 9 + k \]
where \(k\) is a constant that ensures the equation is always false. Let's take \(k = 3\):
So we modify the equation to:
\[ 5x + 12 = x + 12 \]
Now simplify:
The left side simplifies to \(5x + 12\) while the right becomes \(x + 12\). So
\[ 5x + 12 = x + 12 \]
Subtract \(x + 12\) from both sides:
\[ 5x + 12 - (x + 12) = 0 \]
This simplifies to:
\[ 5x - x + 12 - 12 = 0 \] \[ 4x = 0 \]
This leads to:
\[ x = 0 \]
To create an equation with no solution, you could create a scenario where both sides don't balance at any point. For the case of no solutions, we can change the constant on the right side to ensure the two sides are parallel.
So let's rewrite it as: \[ 5x + 12 = x + 9 + 3 \]
That leads to:
\[ 5x + 12 = x + 12 \]
This expression reduces to \(5x = x\), or \(4x = 0\), thus giving a solution, but if we state:
\[ 5x + 12 = x + 12 + 3 \]
The whole side would yield:
\[ 5x + 12 = x + 15 \]
So now rearranging:
\[ 5x - x + 12 - 15 = 0 \]
yields:
\[ 4x - 3 = 0 \rightarrow no solution \]
Thus \( \text{Final Version: } 5x + 12 = x + 15 \) yields no solution.