10 terms

equivalent equations

equations that have the same solution

identity

An equation that is true no matter what values are chosen

multi step equation

equations with more than one operation

percent of change

when an increase or decrease is expressed as a percent

proportion

an equation stating that two ratios are equal

rate

the ratio of 2 measurements having different units of measure

ratio

is a comparison of two numbers by division

scale model

a model used to represent an object that is too large or too small to ne built at actual size

solve an equation

the process of finding all values of the variable that makes the equation a true statement

unit rate

a ratio of 2 quantities, the second of which is one unit