Question

in the expression $2m + 4n - m$, how many terms are there?
a. 4
b. 3
c. 2
d. 1

in the expression $3x + 6$, what is the coefficient of $x$?
a. none of the available options
b. 6
c. $x$
d. 3

what is the variable in the expression $4z - 7$?
a. $-4z$
b. $z$
c. $-7$
d. 4

Explanation:

First Question:

Step1: Define a term

A term in an algebraic expression is a single number, variable, or the product of numbers and variables, separated by + or - signs.

Step2: Identify terms in \(2m + 4n - m\)

The terms are \(2m\), \(4n\), and \(-m\). So we count them.

Step1: Define a coefficient

The coefficient of a variable is the numerical factor multiplied by the variable.

Step2: Identify coefficient in \(3x + 6\)

For the term \(3x\), the numerical factor (coefficient) of \(x\) is 3.

Step1: Define a variable

A variable is a symbol (usually a letter) that represents an unknown or changing quantity.

Step2: Identify variable in \(4z - 7\)

In the expression \(4z - 7\), the symbol representing the unknown quantity is \(z\).

Answer:

b. 3

Second Question: