8 = a -2
What does a equal

a = 10

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of Equality

Step-by-step explanation:

Step 1: Define

8 = a - 2

Step 2: Solve for a

Add 2 on both sides:                    10 = aRewrite:                                          a = 10

Step 3: Check

Plug in a into the original equation to verify it's a solution.

Substitute in a:                    8 = 10 - 2Subtract:                              8 = 8

Here we see that 8 does indeed equal 8.

∴ a = 10 is the solution to the equation.