I actually just answered a question like this.

We want to solve for x. This means we want to get x alone on one side. Here's how we'd solve this:

You just have to collect like terms and solve for x. Then, substitute the value you found for x for the 3 angles.

Add 10 to both sides and subtract 2x from both sides.

Now, it should be easy to solve for x. 

I think this is what you mean

$$\\--10.22+19.36\\
=19.36--10.22\\
=19.36+10.22\\
=29.58$$

 That is positive 29.58

You can think of negative numbers as cold numbers

If you take away cold from a room then the room gets warmer.  

Therefore   $$$--$ can be replaced with a +$$

1/2 + 1/3 = 3/6 + 2/6 = 5/6.

1/(6/5) = 1 * 5/6 = 5/6. 

There are no errors. 

First, turn these numbers into inproper fractions. Here's how we'd do that:

$$\begin{array}{l}
6\frac{2}{3} = \frac{6\times3+2}{3}=\frac{18+2}{3}=\frac{20}{3}\\\\
2\frac{2}{5} = \frac{2\times5+2}{5}=\frac{10+2}{5}=\frac{12}{5}\\\\
3\frac{3}{8} = \frac{3\times8+3}{8}=\frac{24+3}{8}=\frac{27}{8}
\end{array}$$

Now we get:

$$\frac{20}{3}\times\frac{12}{5}\times\frac{27}{8}$$

This can simplified, so we get:

$$\frac{1}{1}\times\frac{2}{1}\times\frac{27}{1}$$

$$\frac{1\times2\times27}{1\times1\times1}$$

$$\frac{54}{1}$$

$$54$$

Remember, skip, change & flip.

21/20 * -21/4.

You can take it from there. 

Yes, subtracting a negative number with a positive number means you keep the negative in this case.

Subtract 44 from both sides then

divide both sides by -7

And goodbye, btw. I am leaving for karate class!

Thank you Haley and AzizHusain. Very kind.

If we have 4+(1/2) cups of rice for 6 servings, we have

4 + (1/2)  = 9/2  

Now divide this by 6

(9/2)  /  (6/1 )   = 

9/2  x  1/6  =  9/12   =  3/4  cup

You can rewhite 4.7 as 4.70 becuse you just add the 0 on with the 7 thats why you can write 4.7 as 4.70

4.7 can be rewritten as 4.70 because the 0's after 7 are not significant...suppose you were measuring something and found out the item was 3.5 inches. That would be the same as 3.5000000 because the 0's are meaningless. 

$${\mathtt{2}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2}} = {\mathtt{4}}$$

You first change the division sign to a multiplication sign then make the reciprocal of the second number and then just multiply the numerator by the numerator and the denominator by the denominator. Don't forget to simplify!

Hi, Message me if you wan't to talk to some one bacause, I have 

nothing better to do with my time right know and I don't want to 

do my home work because I don't under stand it veary well.

Ok. When my report card comes, I will post it on the forum.

An equivalent expression can be found by distributing the 20 and 4 and then doing algebra.

I am not sure what we have to do with that expression...

First, you can multiply both sides by 3 to get rid of potential fractions.

From there, you have to do basic algebra.

Go to the on-site calculator and input sqrt(5).

17.2727272727272727

Just multiply 1/3 and 5.7 to get your answer.