Question

question
solve for a.
-7a + 28 = 7

Explanation:

Step1: Subtract 28 from both sides

To isolate the term with \(a\), we subtract 28 from both sides of the equation \(-7a + 28 = 7\). This gives us \(-7a + 28 - 28 = 7 - 28\), which simplifies to \(-7a = -21\).

Step2: Divide both sides by -7

Now, to solve for \(a\), we divide both sides of the equation \(-7a = -21\) by \(-7\). So, \(\frac{-7a}{-7}=\frac{-21}{-7}\), which simplifies to \(a = 3\).

Answer:

\(a = 3\)