Solving Equations in Physics

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Solving Equations in Physics
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What??? This is physics not math

• Relax. Dont freak out, its as easy as 1, 2, 3

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Do you remember PEMDAS?
What is it?
P
arenthases
E
xponents
M
ultiplication
D
ivition
A
ddition
S
ubtraction
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So, whats first?

• You need to break up the equation into its three
  steps.

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STEP 1

• The first step will always be either adding or
• subtracting.

-
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STEP 2

• The second step will always be either
• multiplying or dividing.

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STEP 3

• The Third Step will always be either squaring or
  square rooting

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One more small detail

• When solving a math problem, the thing you are
  looking for, needs to be alone

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Lets try a problem.

• 7x 5 54

- 5
- 5
This problem has addition, so we need to subtract
first.
Whatever we do on one side, we have to do on the
other.
49

7x
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Now, Step 2.

• 7x 49

Whatever we do on one side, we have to do on the
other.
This problem has multiplication, so we need to
divide now.
7
7
x
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