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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 the...
FK
Answered by Fritz K. • Maths tutor
9989 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
3803 Views

4x^2+5x+2=10

x=0.921 x=-2.17
CK
Answered by Charles K. • Maths tutor
3247 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 same...
MG
Answered by Matthew G. • Maths tutor
3521 Views

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

x=11/5
WP
Answered by Will P. • Maths tutor
3551 Views