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Maths
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Write x/(x-1) - x/(x+1) as a single fraction in its simplest form (Edexcel GCSE 2016)

The key concept to answering this question is to notice that you need a common denominator for both fractions in order to subtract and simplify them. Clearly the two denominators: (x-1) and (x+1) are not ...

FK
Answered by Fritz K. Maths tutor
9913 Views

1/7 + 5/3x

1 x 3x / 7 x 3x + 5 x7 / 3x /7

= 3x/21x + 35/21x

= 3x + 35 / 21x 

RC
Answered by Rachel C. Maths tutor
3731 Views

4x^2+5x+2=10

x=0.921 x=-2.17

CK
Answered by Charles K. Maths tutor
3181 Views

How do you solve a set of three similatenous equations with three unknown variables?

You should manipulate the equations into a form where you can eliminate a variable, using two of the equations. From here, you should be left with two new equations and two unknown variables. Repeat the s...

MG
Answered by Matthew G. Maths tutor
3454 Views

Find x in the following linear equation (5x-3)/4=2

x=11/5

WP
Answered by Will P. Maths tutor
3492 Views

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