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First Step: - {-2[x-3y+12]-5z-30} Second Step: - {-2x+6y-24-5z-30} Third Step (Order is x,y, then z) : - {-2x+6y-5z-54} Final Step: 2x-6y+5z+30

To make sure you're making a well-informed argument, you ought to use a structure that is backed up by plenty of evidence. To think about this you can use the PEEL method: P is for POINT- make your point ...

Enzymes are biological catalysts. They speed up chemical reactions in all living things, and allow them to occur more easily. They occur in plant cells and animal cells. ...

Eating sweet food improves mood because it can alleviate a dysphoric mood as it provides more energy and can lead to an increase in the levels of serotonin in the brain, which can therefore reduce depress...

Cell differentiation allows a cell to specialize to achieve a specific function Multicellular organisms (eg: humans) have different types of cells which have different functions. For exam...