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To simplify an equation the x terms can be collected together to give: 4x + 5x - 2x = 7x

The numbers can be collected together to give: -2 + 7 = 5

Which then when put togeth...

Because these words are both translated to English with 'for' it can be difficult to choose between them at times. In order to choose correctly, there are several rules to remember, here are the most i...

First, think about the plane of movement that the action is occuring in. During a squat, the body looks the same when you cut it vertically down the middle. The movement is therefore occuring in the sagit...

1. Arteries have thick, elastic, muscular walls whereas veins have thin walls with few elastic fibres. Arteries need these properties to give them the strength and elasticity needed to cope with the hi...

Japanese script consists of three different systems of symbols. Katakana, hiragana and kanji.

Katakana is used for words taken from other languages, more colloq...