What does it mean to solve an equation or inequality

x is less than or equal to y. An equation or an inequality that contains at least one variable is called an open sentence. When you substitute a number for the variable in an open sentence, the resulting statement is either true or false. If the statement is true, the number is a solution to the equation or inequality.

please mark brainliest :]

i say b hope this jdjdjdj

your answer would be 12