SOLUTION: I'm just stuck on this easy question. I know I just use the LCD; but I keep getting stuck. (x +1) + (x+2)=2 The (x+1) is over 3 and the (x+2) is over 7, so they are two fractions

Question 25850: I'm just stuck on this easy question. I know I just use the LCD; but I keep getting stuck.
(x +1) + (x+2)=2 The (x+1) is over 3 and the (x+2) is over 7, so they are two fractions being added but I couldn't get it to look right on this screen.
I have tried multiplying the whole equation by 21; isn' that correct? i need some help.
Answer by elima(1433) (Show Source): You can put this solution on YOUR website!
+=2
The LCD=21, so you multiply the first equation by 7, the second equation by 3;
+=2
+=2
=2
=2
Now multiply each side by 21;
10x+13=42
10x=42-13
10x=29
x=2.9
Hope this helps
=)
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