Thursday 19 July 2012

How to Solve Multi Step Equation

In the previous post we have discussed about Rational Function and In today's session we are going to discuss about How to Solve Multi Step Equation. In multi – step equations, we solve the equation in one – step and two steps. When we solve the multi – step equation then we change the position of like variable in one side and unlike variable in other side of equation. Now we will see how to solve multi step equations.
To solve multi step equations we have to follow some of the steps:
Step1: To solve multistep First we have a multistep equation.
Step2: Then combine all the like term in one side or divide that number on both sides of the equation.
Step3: And take the constant number in other side of the equation.
Step4: Then we make one term equation in both the equations.
Step5: If we calculate the equation then we change the sign of the variable. If the number is positive then we change it into negative and the number is negative then we change it into positive.
Step6: At last we get the answer.
Now we will see some of the example by using all the above steps:
Step1: firstly we have a multistep equation:
      -7 (6q -8) = 6q + 24, then we solve the bracket and make the equation in proper form.
      ⇒-42q + 56 = 6q + 24, Now follow the same processor i.e. (know more about Multi Step Equation, here)
Step 2:- This equation has its own variable on both side of equal sign. So put the like variable on the same side. Let’s move the value 6q from the right side to left side and by subtraction 6q on both side of the equation.
         -42q + 56 = 6q + 24;
         -6q              -6q
        -48q +56 = 24,
Step: 3- On solving the equation we use new procedure of one and two step equations. On subtract 56 on both side of the equation:

       -48q + 56 = 24
                 -56   -56
             -48q = -32
Now divide the equation by -48 on both sides.
          -48q     =   -38
           -48            -48
  q = 38/48;
  q = 0.79;
 We get the value of q = 0.79. This is how we can solve the multistep equation.
Now we will see What are Isotopes? It can be defined as the atoms of same element have different number of neutrons. Before preparing for exam please prefer the online tutorial of icse board papers.

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