2 x 10-8 isn't a question. It's only a number.
If you ran into somebody who didn't understand scientific notation,
and he asked you "What does that mean?", you could write it in a
different form that might be clearer to him:
0.00000002
We wouldn't call that an "answer".
Chat with our AI personalities
3x-2=x+8 (+2) 3x=x+10 (-x) 2x=10 (/2) x=5
-10. x+8=-2. this is the same as x=-2-8
I assume you mean, ( parentheses!!!) X/2 + 4 = 10 multiply through by 2 2/1(X/2 + 4 = 10)2/1 X + 8 = 20 subtract 8 from each side X + 8 - 8 = 20 - 8 X = 12 ------------------check in original equation 12/2 + 4 = 10 6 + 4 = 10 10 = 10 ----------- checks
10- 4 x 2 10- 8 2
2 x 10^4 x 2 x 10^4 x 2 x 10^4 = 8 x 10^12 8,000,000,000,000