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Solve the simultaneous equations: 5x + 3y = 9 and 7x - 2y = 25.

To solve these similar equations, we must either first eliminate x or y. There are multiple ways of doing this, one being rearranging one of the equations so that it is either "x=.." or "y=......
MG
Answered by Màiri G. • Maths tutor
12848 Views

How do you increase the rate of a reaction?

A reaction will occur if two reactants collide with each other with enough energy to overcome the 'activation energy'. The activation energy is the minimum amount of energy the reactant particles need in ord...
RR
Answered by Ruby R. • Chemistry tutor
5589 Views

What is Pythagoras' theorem?

Pythagoras' Theorem is a rule for right-angled triangles which is used to solve problems. Explanation: For any right-angled triangle, the longest side (opposite the right angle) is called the hypotenuse . If...
SP
Answered by Sarah P. • Maths tutor
7044 Views

How do I analyse an unseen poem?

Opening up an exam paper and being confronted with a poem which you have never seen before is understandably daunting, however the first thing which is essential to good analysis is to REMAIN CALM. First, be...
MJ
14678 Views

How can I revise for my English Literature exam?

Revising for an English exam can be daunting with so many different poems and texts to choose from! However, it can be useful to revise key themes and ideas across texts, rather than focus on learning every ...
EM
5704 Views