7(x+3)=

To solve the equation \( 7(x + 3) = 28 \), follow these steps:

1. Divide both sides of the equation by 7:

\[
x + 3 = \frac{28}{7}
\]

\[
x + 3 = 4
\]

2. Subtract 3 from both sides:

\[
x = 4 - 3
\]

\[
x = 1
\]

So, the solution is \( x = 1 \).