1. The problem is to solve the equation quickly. 2. Since no specific equation is given, let's consider a simple example: solve for $x$ in $2x + 3 = 7$. 3. Use the formula for linear equations: $ax + b = c \implies x = \frac{c - b}{a}$. 4. Substitute the values: $a=2$, $b=3$, $c=7$. 5. Calculate the numerator: $7 - 3 = 4$. 6. Write the fraction: $x = \frac{4}{2}$. 7. Show cancellation: $x = \frac{\cancel{4}}{\cancel{2}} \times 2$ (simplify numerator and denominator by dividing both by 2). 8. Simplify: $x = 2$. 9. The solution is $x = 2$. This method can be applied quickly to solve simple linear equations.