To solve the equation \( x - 7 = 1 \), you can add 7 to both sides of the equation. Hereβs how it looks:
Starting from the equation:
\[ x - 7 = 1 \]
Add 7 to both sides:
\[ x - 7 + 7 = 1 + 7 \]
This simplifies to:
\[ x = 8 \]
So, the number that should be added to both sides of the equation to solve for \( x \) is 7.