How do you solve simultaneous equations?
There are two main methods:Substitution and elimination which can be demonstrated on the white board.
AC
Related Maths GCSE answers
All answers ▸Sarah’s collection contains dresses, skirts and blouses. If the ratio of dresses to skirts is 7 to 4 and the ratio of skirts to blouses is 7 to 2, what is the ratio of dresses to blouses?
Solve 7x - 14 = 4x + 7
multiply out (2x-4)(x-2) and simplify.
Solve the simultaneous equations 5x + y = 21 and x - 3y = 9