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Year 7 Equations
Definitions and Facts from the NSW Year 7 Equations Topic
Term | Definition |
---|---|
solve | to find the unknown variables of an equation or inequality |
inspection | a method of solving equations or inequalities by looking at a question and mentally finding the answer using your knowledge of numbers |
solution | the answer to an equation or inequality |
inequality | a statement that two quantities are not equal , involving the signs > < ≥ or ≤ |
guess check improve | a method of solving equations and inequalities by making a guess and improving on it. |
equation | a statement involving a variable (such as x), numbers and an equals (=) sign |
balancing method | a method of solving equations by using the same operations on both sides of the equation |
backtracking method | a method of solving equations by ‘undoing’, or performing inverse operations in reverse order |
formula | a rule written in algebraic form. It shows the relationship between variables. |
substitution | the replacement of numbers for variables to simplify or solve expressions and equations |
variable | a letter or symbol representing a varying quantity |
inverse | opposite, reverse operations |