What is a variable in algebra?

• A symbol that represents unknown or changeable values

• A number that is multiplied by a variable

• A mathematical operation

• A fixed number

In the equation x + 3 = 7, what does the variable x represent?

• A number that, when added to 3, equals 7

• A coefficient

• A constant value

• A mathematical operation

What is a coefficient in an algebraic expression?

• A number that is multiplied by a variable

• A symbol that represents unknown values

• A fixed number

• A mathematical operation

In the expression 5x, what is the coefficient of x?

• 5

• x

• 1

• 0

Why is identifying coefficients important in algebra?

• It helps in understanding and simplifying algebraic expressions

• It determines the value of variables

• It is used to solve equations

• It represents unknown values

What is the coefficient of y in the expression 3y + 2?

• 3

• y

• 2

• 5

What do variables and coefficients together form in algebra?

• The building blocks of algebraic expressions and equations

• The solution to algebraic problems

• The unknown values in equations

• The operations in mathematical problems