Top answers

5x – 6 = 3x + 7

whenever you move a term across the equals sign, the sign changes. So first we are going to move all of the x terms onto the left side and all of the number terms onto the right side, remembering that if we ...
RC
Answered by Rebekah C. • Maths tutor
5560 Views

How do I revise for my Maths GCSE exam?

Firstly, ensure that you have all of the notes from class (or from tutoring sessions) from throughout the year. If you do not have all of the topics that are covered in the exam in your book, then you need t...
NB
Answered by Nathan B. • Maths tutor
4719 Views

How to differentiate a function?

Let's look at the function y = 3x^2 + 6x + 3. Differentiating it gives us the derivative of y: dy/dx = 6x + 6. The original function has three terms. Let's look at each term: 3x^2 (^2 means to the power of 2...
ES
Answered by Edmunds S. • Maths tutor
9019 Views

Solve the pair of simultaneous equations {4x + y = 5, 3x - y = 2} using i) a graph and ii) an algebraic method

a) Draw graph and find points of intersection (will be done on whiteboard). b) Sum equations to get 7x=7, so x=1 and y=1.
JF
Answered by Jacob F. • Maths tutor
5016 Views

Show 23/7 as a mixed number.

23/7 = (21+2)/7 = (3*7+2)/7 = 3 2/7
SC
Answered by Sian C. • Maths tutor
8694 Views