Question

Solve the equation. $$ 15-2 a=7 $$

Short answer

The solution to the equation \(15 - 2a = 7\) is \(a = 4\).

Step-by-step solution

Isolation

Start by isolating the variable on one side. Subtract 15 from both sides of the equation to move the 15 from the left side of the equation to the right. This will give: \(-2a = 7 - 15\).

Simplification

Next, simplify the right side of the equation by subtracting 15 from 7. This results in: \(-2a = -8\).

Final Calculation

Finally, solve for \(a\) by dividing the equation by -2 on both sides. This will give: \(a = -8 / -2\). So, \(a = 4\).