http://donsteward.blogspot.co.uk/2012/02/linear-equations-sheets.html

FOLLOW UP ACTIVITY

https://www.mathspad.co.uk/teach/linkedDocuments/equations/Think%20of%20a%20number%20problems.pdf

FOLLOW UP ACTIVITY

http://medianpracticemakesperfect.blogspot.co.uk/2016/11/equations-mix.html

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