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| Algebra: Basic Equations |
| SATpreparation.net |
| For example: 6x + 5 = 4x + 11 First, subtract 5 from both sides: 6x = 4x + 6 Then, subtract 4x from both sides: 2x = 6 Finally divide both sides by 2: x = 3 Solve these basic equations. (Answers are near the bottom of the page.) 1. 5x = 15 6. 2x + 5x = 36 + 6 2. 9x = 27 7. 3x - x = 12 + 4 3. 2x = x + 4 8. 7x + 5 = 2x + 20 4. 5x + 4x = 45 9. 2(x + 1) = 3x + 1 5. 8x / 4 = 36 10. 7(x - 3) = 2x + 9 SAT TIP: Click here to review Order of Operations: clear parentheses; then calculate exponents and roots; then multiply and divide; then add and subtract. Practice with these examples: An easy problem for scores from 200 to 400 A moderate problem for scores from 400 to 600 A difficult problem for scores from 600 to 800 For more practice: Click here for problems in The Official SAT Study Guide. Click here to return to Web Book Access |
| Many students believe the SAT is a test of advanced math, but the SAT has only arithmetic, algebra, and geometry - no trigonometry or calculus. |
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| SAT TIP: To solve an equation perform the same operation on both sides of the equation. |
| Questions? Write the SATtutor@SATpreparation.net |
| Math Review |
| Answers: 1. 3 2. 3 3. 4 4. 5 5. 18 6. 6 7. 8 8. 3 9. 1 10. 6 |