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Algebra Review “Solving Equations”

Algebra Review “Solving Equations”. August 23 rd 2012. Inverse Operations…. To solve algebraic equations, we use inverse operations. To get the variable by itself, we do the opposite. Ex: subtraction gets rid of addition multiplication gets rid of division.

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Algebra Review “Solving Equations”

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  1. Algebra Review“Solving Equations” August 23rd 2012

  2. Inverse Operations… • To solve algebraic equations, we use inverse operations. To get the variable by itself, we do the opposite. • Ex: subtraction gets rid of addition multiplication gets rid of division Balancing the Equation… • Whatever you do to one side, you must do to the other

  3. One-Step Equations 3x = 12 x – 5 = 2

  4. Two-Step Equations 2x – 1 = 11 5 – 3x = 20

  5. Multi-Step Equations 4( x – 1 ) = 20 2 ( 3x + 2 ) + 5 = 21

  6. Equations w/ Variable on Both Sides 3x – 6 = 5x + 8 7x + 10 = x - 2

  7. Complex Equations 2x + 7 – 5x = 4(x + 2) - 3

  8. Using Reciprocals

  9. Solving Ratios

  10. CLASSWORK 1) 7x = 35 8) 3( x – 2) = 3 2) x – 7 = 11 9) 3) 2 – 3x = 11 10) 7x + 2x – 3 = 24 4) 17x – 2 = 15 11) 3x (4) + 5 = 41 5) 2x + 1 = 3x + 6 12) 2( x – 3) + x = 33 6) x – 4 – 7x = 2 13) 4 – 5x – 2 = 27 7) 14)

  11. CLASSWORK Answers 1) x = 5 8) x =3 2) x = 18 9) x = 1 3) x = -3 10) x = 3 4) x = 1 11) x = 3 5) x = -5 12) x = 13 6) x = -1 13) x = -5 7) x = -4 14) x = 6

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