+0  
 
-1
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2
avatar+112 

10(3+8k)+9)k+3)

 Jan 16, 2019
 #1
avatar+111357 
+1

10(3+8k)+9(k+3)      =

 

10*3  + 10*8k  + 9k + 9*3  =

 

30 + 80k + 9k + 27  =

 

57 + 89k

 

 

cool cool cool

 Jan 16, 2019
 #2
avatar+112 
+1

Merci i’ll try the next 10 problems on my own 

McAcey  Jan 16, 2019
edited by McAcey  Jan 16, 2019

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