To solve the given expression, we will solve each equation separately.
- First equation: \(-3 + 7 = 10\)
This is a simple arithmetic statement: \[ -3 + 7 = 4 \quad \text{(not equal to 10)} \] So this part of the expression is false.
- Second equation: \(3x - 9 = 0\)
To solve for \(x\), we add 9 to both sides: \[ 3x = 9 \] Then, divide by 3: \[ x = 3 \]
Now, we combine the results from both equations. The first part is false (not part of the solution), but the second part provides the solution \(x = 3\).
Thus, the solution set is: \[ {3} \]