91影视

An algebraic expression is an expression that comprises sums and products of variables and numbers. For example,$2a+1$ and $\frac{1}{2}b鈭�3c^2$.

If operation in algebraic expression is 鈥樷�撯��, then the verbal phrases that could be used to translate the algebraic expression to verbal expression are less than, subtracted from, difference, decreased by and minus, and if phrases are the product of, multiplied by times, and of, then the operation is multiplication.

In the given verbal expression, the word 鈥渄ecreased by鈥� and 鈥渢imes鈥� translates to the sign (鈥�) and operation multiplication respectively.

Hence, an algebraic expression from the given verbal expression will be 鈥�$18鈭�3d$鈥�.

Therefore, the algebraic expression is 鈥�$18鈭�3d$鈥�.