(8+x)(7-1)

To simplify the expression \((8+x)(7-1)\), first, calculate the value inside the parentheses:

\(7 - 1 = 6\).

Now, replace \(7 - 1\) with \(6\):

\((8 + x)(6)\).

Now, you can distribute \(6\):

\(6(8 + x) = 6 \cdot 8 + 6 \cdot x = 48 + 6x\).

So, the simplified expression is:

\[ 48 + 6x. \]