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Rearranging equations Gathering terms ‘b2’term
‘ab’ term
‘ab’ term
‘a’ term
‘a’ term ‘a’ term You can add or subtract like terms only You cannot mix terms So the above equation can be simplified to 6a + 2ab - b2
Take a test
Another good idea is
to underline each
type of term in a
 different colour
In this first example All the types of term are in a different Colour so that they Can be gathered Together and simplified
3a +4a = 7a
2b - b = b
So the simplified equation is
7a + b +2c
You can also do this by eliminating numbers from each side
 either by adding, subtracting, multiplying or dividing
3x -1 = x + 7
Add 1 to each side
3x -1 + 1 = x + 7 + 1
We then get
3x = x + 8 Now subtract x from each side
3x - x = x + 8 - x
We now get
2x = 8 divide both side by 2 2x/2 = 8/2 Final answer x = 4
Gathering terms
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