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1st step : Find the difference The pattern seems to be add three each time. 7+3=10, 10+3= 13 etc. So we know our staring point is 3n 2nd step : How much do we need to add or takeaway to get the first term? 7 is our first term in this sequence. Our starting point for the nth term is 3n. To get 7 I need to do 3+4 Therefore the nth term for this sequence is 3n + 4 Hope this helped !
The difference between each number is 3 so this becomes 3n. If u then put the 3x tables under the sequence u will see that you need to add 4 to match your sequence for example 3+4=7 6+4=10 9+4=13 so this becomes the final part of the nth term therefore the nth term is 3n+4
We can see that each term in the sequence we add 3. Also if we think about what number would come before 7, we can see 7-3=4. This tells us that the nth term is given by: 3n+4
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Rearrange w=3(2a+b)-4 make A the subject