1 Answer
Y - 10 = x     X = 4, 7, 9
Simple place one of the x choice in the equation
Y - 10 = 4
Now, get the Y all by itself on one side of the = sign.  Do this by adding 10.  Add 10 to BOTH sides of the equation. 
Y - 10 + 10 = 4  + 10
Y = 14 
Do the same procedure, substituting 7, and then 9 for X.   
| 13 years ago. Rating: 0 | |
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