Equation and inequalities.

  1. Equation- A problem that contains an equal sign.

  2. Inequality.-A problem that contains these signs  {,,<,>,}

  3. Inverse operations-Operations that undo each other; -/+   X/

  4. Identity- Any equation that uses more than one variable and asks you to solve for one of them. ex)3x=3x

  5. Grouping symbols- The math inside any and all grouping symbols. First, inside the grouping symbol, you also follow order. These include; ( ), { }, [ ], | |, !, square root

  6. Exponents.- Then work out any exponents that can be solved. 

  7. Term -A number by itself of aerial by itself, or the multiplication of a number and variables. ex) 4, x, 3xy, 2(3xy)

  8. multiply and divide-Do this in order from left to right.

  9. Add and subtract-.Do this in order from left to right.

  10. Constant.- A term with no variables. Ex) .4, 8.93, 5

  11. Like terms- Terms with the same variables raised to the same exponent.

  12. Expression.- A problem with no equal or inequality sign.

  13. Coefficient- the numerical factor of the variable. A variable by itself has a coefficient of one. ex) 1x=x

  14. Literal equation.- An equation that uses more than one variable and asks you to solve for one of them.

  15. Compound inequality- 2 inequalities. joined with the word “and” or the word “or”.