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An example of a pair of simultaneous equations is as follows:
4x + 3y = 10    (1) and
2x - 3y = 14    (2)
Now to solve these equations we can simply add them and solve for x, then sub that ...

Several d-metal complexes show colour. This is because their d-orbitals are not degerate in energy levels. Instead the d-orbitals split, some having higher energy than average and some lower than avera...

To begin with, you can vary your vocabulary and your sentence/paragraph structure. However in the end what makes a piece of writing interesting varies depending on its purpose. So you need to become fa...

The law of diminishing returns is when the marginal output of a production process decreases with every additional increase in a factor of production (or input), holding all other factors of production co...

The portuguese verbs 'ser' and 'estar' both translate into the english verb 'to be'. However, the two are not interchangeable. 

'Ser' is...