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# Help

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what is '?' ± 10 = 16

Guest May 29, 2017
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$$x=6\hspace{1cm}x=26$$

Here is the original equation:

$$x\pm10=16$$

What is this telling us? This equation is really 2 separate equations. I've laid them out for you:

1. $$x+10=16$$
2. $$x-10=16$$

Now do you understand what $$\pm$$ means? It means that you both add and subtract. Solve each equation separately, and you get both values for x. I'll start with the first:

 $$x+10=16$$ Subtract 10 on both sides to isolate x $$x=6$$

Of course, you aren't done yet! You must solve the other equation, too:

 $$x-10=16$$ Add 10 on both sides to isolate x $$x=26$$

Therefore, you have 2 solutions:

$$x=6$$ and $$x=26$$

TheXSquaredFactor  May 29, 2017

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