1. Which of the following defines an EQUATION?

A. Formed by placing an equality symbol between the numerical or variable expression

B. Any numerical value that gives a true statement

C. An algebraic expression containing a variable or variables.

D. A combination of expressions


2. What is an expression?

A. mathematical phrase made up of a variable or combination of variable, numbers and operation

B. Formed by placing an equality symbol between the numerical or variable expressions

C. Any numerical or mathematical phrase with equal symbol.


3. Write the correct translation of the following algebraic expression or equation. Twice a number is subtracted from 10.

A. 10 - 2x

B. 10 + 2x

C. 10x + 2

D. 10x - 2​