Question

Please help me with this question.

Answer 1

7x + 4,

8y - 3 > 13,

8a,

9 < 5x - 1

Explanation:

Hello!

For this question it's important to know what form an expression takes, which is essentially a group of "things" (such as x, y, and numbers) that don't necessarily equal anything else, that would be an equation

In other words, an expression is a mathematical statement that does not include an = sign.

Answer 2

Expressions: 1. 7x + 4 and 5. 8a. These involve variables and operations. Others are equations or inequalities, combining variables, operations, and relational symbols.

Expressions are mathematical phrases that combine numbers, variables, and operations. Here are the expressions among the given options:

1. 7x + 4: This is an expression. It involves a variable (x) and arithmetic operations (addition).

2. 8y - 3 > 13: This is not an expression but an inequality. It combines a variable (y) and arithmetic operations along with a relational symbol (>), forming an inequality.

3. x - 7 = 0: This is not an expression but an equation. It includes a variable (x), arithmetic operations, and a relational symbol (=), forming an equation.

4. 9 < 5x - 1: This is not an expression but an inequality. It combines a variable (x) and arithmetic operations along with a relational symbol (<), forming an inequality.

5. 8a: This is an expression. It involves a variable (a) and multiplication.

6. 6x + 6 = 12 + x: This is not an expression but an equation. It includes a variable (x), arithmetic operations, and a relational symbol (=), forming an equation.

In summary, options 1 and 5 are expressions as they involve variables and arithmetic operations.