Using mental math solve the inequality 7+ a > 5+ 6 in the solution set the variable a must be greater than what number

Answer 1

To solve the inequality 7 + a > 5 + 6, we can simplify it by combining like terms:

7 + a > 11

Next, we can isolate the variable by subtracting 7 from both sides:

a > 4

In the solution set, the variable a must be greater than the number 4.