SOLUTION: if 7+8=17 8+9=20 9+10=23 Find 13+14=x??

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Question 759083: if 7+8=17 8+9=20 9+10=23 Find 13+14=x??
Found 2 solutions by MathLover1, solver91311:
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
look for the pattern:
if 7%2B8=17 => 7%2B8=15 and 15%2B2=17......here add 2
8%2B9=20=> 8%2B9=17 and 17%2B3=20.....here add 3
+9%2B10=23 => 9%2B10=17 and 19%2B4=23.....here add 4
next one will be
+10%2B11=x => 10%2B11=x and 21%2B5=26.....here add 5 and x=32
next one will be
+11%2B12=x => 11%2B12=x and 23%2B6=29.....here add 6 and x=29

next one will be
+12%2B13=x => 12%2B13=x and 25%2B7=32.....here add 7 and x=32
so,
13%2B14=x=> 13%2B14=x and 27%2B8=35.....here add 8 and x=35

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


7 + 8 is really 15, so 17 is 2 more than it ought to be.

8 + 9 is really 17, and 20 is 3 more

9 + 10 is really 19, and 23 is 4 more

then

10 + 11 is really 21, but we expect 5 more, so 26

Continue to follow the pattern.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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