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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 value of x in to one of ...

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 average. Th...

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 familiar...

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 const...

The portuguese verbs ' ser ' and ' estar ' both translate into the english verb 'to be'. However, the two are not interchangeable. ' Ser' is used in situation where you want to describe a permanent state, of...