Using mental math, solve the inequality, 7+ a > 5+6. In the solution set, the variable a must be greater than what number?
To solve the inequality 7+ a > 5+6, we first simplify the expression on the right side:
7 + a > 11
Next, we subtract 7 from both sides to isolate the variable a:
a > 4
Therefore, the variable a must be greater than 4 in the solution set.