1.4+Rewrite+Formulas+and+Equations



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 * ** Formula ** : An equation that relates two or more quantities, usually represented by variable.
 * ** Solve for a variable ** : T o rewrite an equation as an equivalent equation in which the variable is on one side and does not appear on the other side.
 * ** Literal equation **: An equation in which some or all of the coefficients and constants are indicated by letters.