Question

solve for r.
-3r + 1 = 7
r = ?

Explanation:

Step1: Subtract 1 from both sides

To isolate the term with \( r \), we subtract 1 from both sides of the equation \(-3r + 1 = 7\). This gives us \(-3r + 1 - 1 = 7 - 1\), which simplifies to \(-3r = 6\).

Step2: Divide by -3

Now, to solve for \( r \), we divide both sides of the equation \(-3r = 6\) by \(-3\). So, \(\frac{-3r}{-3}=\frac{6}{-3}\), which simplifies to \( r = -2 \).

Answer:

\( r = -2 \)