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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Add or Subtract Expressions (XEI402) Name Nov 30, 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 * * 1x + 4 * -5 6x ( 1x + 3 ) + 4( 1x + -5) Are there any hidden 1s or “plus negatives”? 2x x Draw your “rainbows”

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

Add or Subtract Expressions (XEI402) Name Nov 30, 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 * * 1x + -1 * 3 2x ( 1x + -5 ) + -1( 1x + 3) Are there any hidden 1s or “plus negatives”? 3x x + -3 Draw your “rainbows”

Add or Subtract Expressions (XEI402) Name Nov 30, 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 * * 2b + -3 * -4 -8n ( 1b + -7 ) + -3( 2b + -4) Are there any hidden 1s or “plus negatives”? -2b b + 12 Draw your “rainbows”

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

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