ABSTRACT
At the end of this chapter, you should be able to:
• distinguish between an algebraic expression and an algebraic equation • maintain the equality of a given equation whilst applying arithmetic operations • solve linear equations in one unknown including those involving brackets and fractions • form and solve linear equations involved with practical situations • evaluate an unknown quantity in a formula by substitution of data
3x − 4 is an example of an algebraic expression. 3x − 4 = 2 is an example of an algebraic equation (i.e. it contains an ‘=’ sign). An equation is simply a statement that two expressions are equal.
