What I have learned about grade 9 solving equations

 

• An equation is a statement that contains one or more variables. Solving the equations consists of determining which values of the variables make the answer true.
• An equivalent equation are algebraic equations that have identical solutions

 

 

Equation: a statement that the values of two mathematical expressions are equal

Equivalent: Equal in value

Solution: Solving a problem for the correct answer

Coefficient: The number before a variable

Zero Pairs: a pair of numbers whose sum is zero, e.g. +1, -1

Variable: a variable is a symbol, commonly a single letter, that represents a number, called the value of the variable

Common denominator: The same number on the bottom of a fraction