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Easy (ish) Column Medium (ish) Column Hard Column SolvingEQUATIONS 1.0 Brackets You should have worked through inverse operations before you attempt this sheet! Solve for n: 1. 3(n+2) = 12 2. 2(n + 8) = 56 3. 5(n + 2) = 100 4. 10(n + 3) = 280 5. 3(2n + 2) = 0 6. 2(3n3) = 36 7. 5(2n5) = 26 8. 8(n9) = 80 9. 12(0.5n+ 2) =36 10. n(3+7) + 2 = 92 11. 2(n – 4) = 3(n+4) 12. 4(2na+5) = 5 13. 7(5n) = 2(a+3) 14. 2(a+b) = 9n 15. 1/n(2+a) = 8 1.1 Squares and Other Indices Solve for n (or rearrange for q11q15): 1. ! = 81 2. ! = 121 3. ! = 36 4. ! = 27 5. ! = 125 6. ! + 6 = 150 7. ! 10 = 6 8. ! 8 = 41 9. ! + 9 = 73 10. 12 ! = 88 11. ! = 12. ! ! = 0 13. ! = 4 14. ! ! = 10 15. ! ! ! = 1.2 Combinations (Brackets and Indices) Solve for n (or rearrange for q11q14): 1. ! = 13(9 + 4) 2. ! = 5(40 + 5) 3. 2( ! + 2) = 292 4. 2( ! + 1) = 34 5. 2( ! 4) = 64 6. ! = 6(6 + 18) 7. ( + 2) = 48 8. ( ! ) = 27 9. ! = 5(18+7) 10. 2( ! + 4) = 40 11. ! = a(bc) 12. ! = 7c(a+2b) 13. ! = 3(a2c) 14. ! ( ! ) = p 15. = 4 ( 2 )

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Easy  (ish)  

Column  

Medium  (ish)  

Column  

Hard  

Column  

SolvingEQUATIONS  

1.0  Brackets    

You  should  have  worked  through  inverse  operations  before  you  attempt    this  sheet!  

Solve  for  n:  

1. 3(n+2)  =  12  2. 2(n  +  8)  =  56  3. 5(n  +  2)  =  100  4. 10(n  +  3)  =  280  5. 3(2n  +  2)  =  0  

 

6. 2(3n-­‐3)  =  36  7. 5(2n-­‐5)  =  26    8. 8(n-­‐9)  =  80  9. 12(0.5n+  2)  =36  10. n(3+7)  +  2  =  92  

 

11. 2(n  –  4)  =  3(n+4)  12. 4(2n-­‐a+5)  =  5  13. 7(5-­‐n)  =  2(a+3)  14. 2(a+b)  =  9n    15. 1/n(2+a)  =  8

 

1.1  Squares  and  Other  Indices  

Solve  for  n  (or  rearrange  for  q11-­‐q15):  

1. 𝑛! = 81  2. 𝑛! = 121  3. 𝑛! = 36  4. 𝑛! = 27  5. 𝑛! = 125  

 

6. 𝑛! + 6 = 150  7. 𝑛! − 10 = 6  8. 𝑛! − 8 = 41  9. 𝑛! + 9 = 73  10. 12− 𝑛! = −88  

 

11. 𝑛! − 𝑎 = 𝑐  12. 𝑝! − 𝑛! = 0  13. 𝑡𝑛! = 4𝑤  14. 𝑡!𝑛! = 10  15.

!!!= 𝑘

 1.2  Combinations  (Brackets  and  Indices)  

Solve  for  n  (or  rearrange  for  q11-­‐q14):  

1. 𝑛! = 13(9 + 4)  2. 𝑛! = 5(40 + 5)  3. 2(𝑛! + 2) = 292    4. 2(𝑛! + 1) =  34  5. 2(𝑛! − 4) = 64    

   

6. 𝑛! = 6(6 + 18)    7. 𝑛(𝑛 + 2𝑛) = 48  8. 𝑛(𝑛!) =  27    9. 𝑛! =  5(18+7)  

10. −2(𝑛! + 4) = −40      

11. 𝑛! =  a(b-­‐c)  12. 𝑛! =  7c(a+2b)  13. 𝑛! =  3(a-­‐2c)  14. 𝑛!(𝑛!) =  p  15. 𝑛 =   4( 2)  

               

Answers  1. n  =  2  2. n  =  20  3. n  =  18  4. n  =  25  5. n  =  -­‐1  6. n  =  7  7. n  =  5.1  8. n  =  19  9. n  =  2  10. n  =  9  11. n  =  -­‐20  12. n  =  6.25  +  a  13. n  =  (32-­‐2a)/7  14. n  =  (2(a+b))/9  15. n  =  (2+a)/8  

 

1. n=+-­‐9  2. n=+-­‐11  3. n=+-­‐6  4. n=3  5. n=5  6. n=+-­‐12  7. n=+-­‐4  8. n=+-­‐7  9. n=4  10. n=+-­‐10  11. 𝑛 = ± 𝑐 + 𝑎  12. n=+-­‐p  

13. 𝑛 = ± !!!  

14. 𝑛 = ± !"!!  

15. 𝑛 = !!

!  

 

 

1. n=8  2. n=+-­‐15  3. n=+-­‐12  4. n=+-­‐4  5. n=+-­‐6  6. n=+-­‐12  7. n=+-­‐4  8. n=3  9. n=5  10. n=+-­‐4  11. 𝑛 = 𝑎(𝑏 − 𝑐)!  12. 𝑛 = 7𝑐(𝑎 + 2𝑏)!  13. 𝑛 = 3(𝑎 − 2𝑐)!  14. 𝑛 = 𝑝!  15. n=8