Write the expression. Then, check all that apply. Four times a number increased by seven A 2-column table with 5 rows. Column 1 is labeled Key words with entries four, times, a number, increased by, seven. Column 2 is labeled Replace with entries 4, x, n, + , 7. Replace “a number” with the variable, n. The two operations are multiplication and addition. The two operations are multiplication and subtraction. The expression is written as 4n + 7. The expression is written as 4n – 7.