How do you solve simultaneous equations?
The easiest way to solve simultaneous equations is by elimination. This is the idea of cancelling out one of your variables, the X or Y so that you can solve the remaining variable and then substitute this answer to find the remaining answer. This sometimes requires manipulation for example, rearranging an equation or multiplying an equation to be able to cancel the variables. My advice would always be to label the equations to avoid mistakes.
BH
Related Maths GCSE answers
All answers ▸A right-angled triangle has side lengths of 4cm and 3cm. What is the length of its hypotenuse?
How to find domains satisfying quadratic inequalities?
There are 11 pens in a box. 8 are black and 3 are red. Two pens are taken out at random without replacement. Work out the probability that the two pens are the same colour.
How do you solve the #EdexcelMaths question?