1. Let's start by understanding what algebra is: it's a way to use letters (called variables) to represent numbers in math problems. 2. A very important rule is that you can do the same thing to both sides of an equation without changing the answer. For example, if you add 3 to one side, add 3 to the other side too. 3. When you see an equation like $x + 5 = 12$, you want to find out what $x$ is. To do this, subtract 5 from both sides: $$x + 5 - \cancel{5} = 12 - \cancel{5}$$ which simplifies to $$x = 7$$ 4. Another key idea is to combine like terms. For example, $2x + 3x = 5x$ because both terms have $x$. 5. Remember, multiplication and division come before addition and subtraction. So in $2 + 3 \times 4$, first do $3 \times 4 = 12$, then add 2 to get 14. 6. Practice solving simple equations by isolating the variable step by step, and always check your answer by plugging it back into the original equation. This simple approach will help you feel confident in algebra on your test!