To find the total amount of water needed for the 7 plants, Noah multiplies the number of plants (7) by the amount of water each plant needs (14 ounces). The multiplication is:
\[ 7 \times 14 = 98 \]
To check his answer using addition, he can add 14 ounces for each of the 7 plants. The corresponding addition equation would be:
\[ 14 + 14 + 14 + 14 + 14 + 14 + 14 = 98 \]
Among the provided options, the correct equation that shows the addition equivalent is:
\[ 14 + 14 + 14 + 14 + 14 + 14 + 14 = 98 \]
So, the correct response is:
14 + 14 + 14 + 14 + 14 + 14 + 14 = 98