solve the following equation x2-16x= -55

2x-16x=-55

Combine the like terms:

-14x=-55

Divide -14 from both sides.

$${\frac{{\mathtt{55}}}{{\mathtt{14}}}} = {\mathtt{3.928\: \!571\: \!428\: \!571\: \!428\: \!6}}$$

Uhhh... x=3.928571428714286?

I think this might be intended to be 

 

$$x^2-16x=-55$$

 

in which case rewrite as:

 

$$x^2-16x+55=0$$

 

This factorizes nicely:

 

$$(x-5)(x-11)=0$$

 

So we have x = 5 and x = 11 as the two solutions.

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