MTH 091

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MTH 091

• Sections 9.3
• Further Solving Linear Equations

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From Last Time

• An equation is an statement that says two
  algebraic expressions are equal.
• The goal of solving a linear equation is to
  isolate the variable, to get x by itself on one
  side of the equation.
• Distribute to remove parentheses
• Combine like terms
• Variables on one side, constants on the other
• Divide both sides by the coefficient
• Watch out for identities and contradictions

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Examples
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In This Section.

• If your equation has fractions, you can eliminate
  them by multiplying by a least common
  denominator.
• If your equation has decimals, you can eliminate
  them by multiplying by a power of ten (for
  example, 10 or 100 or 1000).

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More Examples