Hi Conny;
x=first integer
x+1=second integer
x+2=third integer
(x)+(x+1)+(x+2)=63
3x+3=63
Let's subtract 3 from both sides to proceed to isolate x...
3+3x+3=633
3x=60
Let's divide both sides by 3...
3x/3=60/3
x=20
Let's check our work...
x=20
x+1=21
x+2=22
Does 20+21+22=63
Yes!
10/20/2013

Vivian L.
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