Transcription of Solving Equations—Quick Reference - Algebra-Class.com
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Solving Equations—Quick Reference - Algebra-Class.com
Solving equations quick Reference Integer Rules Distributive Property Examples Addition: 3(x+5) = 3x +15 Multiply the 3 times x and 5. If the signs are the same, add the numbers and keep the sign. -2(y 5) = -2y +10 Multiply 2 times y and 5. If the signs are different, subtract the num- 5(2x 6) = 10x 30 Multiply 5 times 2x and 6. bers and keep the sign of the number with the largest absolute value. Solving equations Study Guide 1. Does your equation have fractions? Subtraction: Add the opposite Yes Multiply every term (on both sides) by the Keep Change Change denominator. Keep the first number the same. No Go to Step 2. Change the subtraction sign to addition. 2. Does your equation involve the distributive property? Change the sign of the second number to (Do you see parenthesis?). it's opposite sign. Yes Rewrite the equation using the distributive property. Multiplication and Division: No Go to Step 3. If the signs are the same, the answer is 3.
Copyright 2009 Algebra-class.com Solving Equations—Quick Reference Integer Rules Addition: • If the signs are the same, add the numbers and keep the sign. • If ...
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