You must be emphasized on step 4 as you can never have a denominator of zero in a fraction you have to make sure that none of. Here for example 5x 9 is the expression on the left-hand side which is equal to the expression 24 on the right-hand side. The most useful math envorinments are the equation environment for typesetting single equationsand the align environment for multiple equations and automatic alignment.
The algebra student or algebraically able individual is expected to know the difference between an expression and a statement because each serves a different purpose and each is handled in a certain way.
10 2 12 4a - 3b 1 e x y - 2. This formula fx x2 is an example. For example 25 7 64 2. To solve the equation x 8 12 you must get x by itself on one side.