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MATH 101A / AD1-6

Linear Equations
Tips & Strategies
Word Problems

Linear Equations

A linear equation looks like any other equation. It is made up of two expressions set equal to each other. A linear equation is special because:

  1. It has one or two variables.
  2. No variable in a linear equation is raised to a power greater than 1 or used as the denominator of a fraction.
  3. When you find pairs of values that make the linear equation true and plot those pairs on a coordinate grid, all of the points for any one equation lie on the same line. Linear equations graph as straight lines.

Recall the following:

  • A linear equation is a polynomial of degree 1.
  • In order to solve for the unknown variable, you must isolate the variable
  • In the order of operations, multiplication and division are completed before addition and subtraction

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