4Nb |
+ |
5O |
→ |
Nb |

What is wrong with the equation? List the elements like this:

4=Nb=2

10=O=5

As you add coefficients continue that until both sides are the same.

Here is the balanced equation:

4Nb |
+ |
5O |
→ |
2Nb |

*Fixed it didn't add the two when i copied it over*

3.141592653589793238462643383279502884197169399375105820974944592307816406286 208998628034825342117067982148086513282306647093844609550582231725359408128481 117450284102701938521105559644622948954930381964428810975665933446128475648233 786783165271201909145648566923460348610454326648213393607260249141273724587006 60631558817488152092096282925409171