Equations can be true or false. Can expression like 2a + 7 be true or false?
I just answered your last 3 question .when you posted them earlier
2a + 7 = 17 True or false?
2a + 7 = 20 True or false?
No, an expression like 2a + 7 cannot be true or false. Equations are statements that assert the equality of two expressions and can be evaluated as either true or false.
On the other hand, expressions simply represent mathematical operations and do not make statements of equality. They can be evaluated or simplified, but they cannot be true or false on their own. In the case of the expression 2a + 7, it represents the sum of two times the unknown variable a and 7. It is an algebraic expression and its value depends on the value of the variable a. For example, if a = 5, then the expression evaluates to 2(5) + 7 = 10 + 7 = 17, but it is not considered true or false.