MATH - SCIENCE INTEGRATION

bullet1 SOLVING ONE STEP EQUATIONS

bullet2 Introduction

Solving One Step Equations:
In algebra you will solve equations to find the value of a variable.  This value may represent many different things depending on the problem being solved.  In science it may represent the speed of an object, the amount of a chemical that may need to be added to a mixture, or the number of bacteria present after a given time.  In accounting it may represent the profit or loss of a company or the amount you will need to charge for an item to make a profit.  Or in everyday life you may need to find out how many guests will be coming to your party or how much sugar you need if you double the cookie recipe.


bullet3 Reminders

                                    

  1)  When solving algebraic equations use the inverse .
      or opposite operation
 
  • The inverse of a positive number is a negative number.
  • The inverse of a negative number is a positive number.
  • The opposite of mutiplication is division.
  • The opposite of division is multiplication.
  • The inverse of a rational number (fraction) is the reciprocal
          (flip the fraction over and keep the sign the same.)
 
2)  When solving algebraic equations what ever you do
      to one side of the equation you must do the exact
      same thing to the other side.


bullet3 Types of One Step Equations

  •  Addition:          x + a = b
 
  • Subtraction:     x - a = b
 
  • Multiplication:  ax = b
 
  • Division:           x/a = b
 
  • Multiplying by a fraction:   a/b   x = c
 
x is the variable and a, b and c are real numbers