Question

The following list contain some alegbraic expressions and equations:
1. 9x + 2 = 11
2. 3x +7 = 0
3. 2x - 1

Out of them, will be an expression.

• A. 9x + 2 = 11
• B. 2x - 1
• C. 3x + 7 = 0

Answer 1

The correct option is B 2x - 1

We know, an equation is a statement that asserts the quality of two expressions, which are connected by the equal sign.

The first option is 9x + 2 = 11

This has expressions on LHS and RHS connected by equal sign. Hence, this is an equation.

The next option is 3x + 7 = 0.

This also has expressions on LHS and RHS connected by equal sign. Hence, this is an equation.

The next option is 2x - 1.

This is an expression, since it does not contain an equal sign.

So, in the given list, 2x - 1 will be an algebraic expression.