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Home Q & A Board Science-Related Homework Help Mathematics
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tonigra tonigra
wrote...
Posts: 30
Rep: 1 0
11 years ago
Write an equation and solve it to find the unknown number.  
Let the unknown number be x.
Show your working.

Think of a number. Add 12. The answer is 17.
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wrote...
#1
11 years ago
x + 12 = 17
wrote...
#2
11 years ago
X + 12 = 17
SUBTRACT 12 FROM BOTH SIDES
X = 5
wrote...
#3
11 years ago
x+12 = 17

x = 5
.
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