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x=1, y=3; Firstly, rearranging for x in the first equation: x = (7-2y); Substitute this into the second equation: 3y - (7 -2y) = 8; Expand: 3y -7 +2y = 8 (watch negative) 3y +2y = 15 Therefore, 5y = 15 an...

When approaching a question like this, it’s important to identify the two compounds that we are dealing with first. Sodium is an alkali metal, and therefore the metallic structure that it forms comes from...

In the Platonic dialogue Euthyphro, Socrates asks the greek prophet Euthyphro the question: "is the pious pious because it is loved by the gods or is it loved by the gods because it is pious?", ...

Step 1: Draw a labelled diagram of the triangle, marking the side lengths. Step 2: Recall Pythagoras’ theorem equation ‘c2=a2+b2’ Step 3: Substitute the values of a and b into the equation. c2=8.652+10.15...

I believe that there is no better way to revise for Maths than to continually practice questions (especially those that you find most tricky!) The more you practise, the easier you'll find the questions b...