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1. Adding and Subtracting Expressions

I DO. 1. Adding and Subtracting Expressions. Example 1 : Simplify the expression using distributive property and by combining like terms. 2 ( x + 3 ) + 4 ( x – 5 ). Are there any hidden 1s or “plus negatives”?. Draw your “rainbows”. 2 ( 1x + 3 ) + 4 ( 1x + -5 ).

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1. Adding and Subtracting Expressions

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

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

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

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

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

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

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