9(7r−3s+10)

1 answer

To simplify the expression \( 9(7r - 3s + 10) \), you can distribute the 9 to each term inside the parentheses:

\[ 9(7r) - 9(3s) + 9(10) \]

Calculating each term:

\[ 9 \cdot 7r = 63r \] \[ 9 \cdot -3s = -27s \] \[ 9 \cdot 10 = 90 \]

Now, combine these results:

\[ 63r - 27s + 90 \]

So, the simplified expression is:

\[ \boxed{63r - 27s + 90} \]