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Add or Subtract Expressions (XEI402) Name Nov 30, 2011 1. Adding and Subtracting Expressions Example 1: Simplify the expression using distributive property.

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Presentation on theme: "Add or Subtract Expressions (XEI402) Name Nov 30, 2011 1. Adding and Subtracting Expressions Example 1: Simplify the expression using distributive property."— Presentation transcript:

1 Add or Subtract Expressions (XEI402) Name Nov 30, 2011 1. Adding and Subtracting Expressions Example 1: Simplify the expression using distributive property and by combining like terms I DO 2( x + 3 ) + 4( x – 5) 2 * 1x + 2 * 3 + 4 * 1x + 4 * -5 6x + -14 2( 1x + 3 ) + 4( 1x + -5) Are there any hidden 1s or “plus negatives”? 2x + 6 + 4x + -20 Draw your “rainbows”

2 Add or Subtract Expressions (XEI402) Name Nov 30, 2011 1. Adding and Subtracting Expressions Example 2: Simplify the expression using distributive property and by combining like terms WE DO 10 + 4( h + 2) 10 + 4 * 1h + 4 * 2 4h + 18 10 + 4( 1h + 2) PEMDAS!!! Distribute the 4 first Then add 10 10 + 4h + 8

3 Add or Subtract Expressions (XEI402) Name Nov 30, 2011 1. Adding and Subtracting Expressions Example 3: Simplify the expression using distributive property and by combining like terms WE DO 3( x – 5) – ( x + 3) 3 * 1x + 3 * -5 + -1 * 1x + -1 * 3 2x + -18 3( 1x + -5 ) + -1( 1x + 3) Are there any hidden 1s or “plus negatives”? 3x + -15 + -1x + -3 Draw your “rainbows”

4 Add or Subtract Expressions (XEI402) Name Nov 30, 2011 1. Adding and Subtracting Expressions Example 4: Simplify the expression using distributive property and by combining like terms WE DO -2( b – 7) – 3( 2b – 4) -2 * 1b + -2 * -7 + -3 * 2b + -3 * -4 -8n + 26 -2( 1b + -7 ) + -3( 2b + -4) Are there any hidden 1s or “plus negatives”? -2b + 14 + -6b + 12 Draw your “rainbows”

5 Add or Subtract Expressions (XEI402) Name Nov 30, 2011 1. Adding and Subtracting Expressions Example 5: Simplify the expression using distributive property and by combining like terms YOU DO -2 + 5( 6c – 8) -2 + 5 * 6c + 5 * -8 30c + -42 -2 + 5( 6c + -8) Are there any hidden 1s or “plus negatives”? -2 + 30c + -40 PEMDAS!!! Distribute the 5 first Then add -2

6 Add or Subtract Expressions (XEI402) Name Nov 30, 2011 1. Adding and Subtracting Expressions Example 6: Simplify the expression using distributive property and by combining like terms YOU DO -4( 2j – 5) + 2( -4 + 3j) -4 * 2j + -4 * -5 + 2 * -4 + 2 * 3j -2j + 12 -4( 2j + -5 ) + 2( -4 + 3j) Are there any hidden 1s or “plus negatives”? -8j + 20 + -8 + 6j Draw your “rainbows”

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