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Bring the x terms onto one side of the equation, and the numbers onto the other, rearranging to get 4x=8divide both sides by 4 to get x=2check answer by subbing x=2 into the equation, such that -11=-11

Simultaneous equations are two equations with two unknowns. And they can be solved by either elimination or substitution method.For this example, we will use the elimination method. First of all to make i...

Within English Literature, most exam boards are looking for evidence that is thoughtful, relevant, and embedded within the sentence. Keeping this in mind, at A-level an ideal length for quotes used to bac...

It is known as double-stranded as there are two strands of DNA joined by hydrogen bonds between the bases and polynucleotide refers to the fact that there are many nucleotides joined by phosphodiester bon...

The key to this begins with spending time reading the question carefully, making sure you understand what it is that is being asked of you. For example, if the question states ‘In light of this quotation’...