Hi;
multiply the first equation by 2 giving 6x + 2y =18 now solve them together using elimination method
6x + 2y + 4x -2y = 18 + 7 ( y eliminated)
10x = 25
x = 2.5
7.5 + y =9
y = 1.5
These 2 simultaneous equations have come up on a practise mock GCSE paper and i wondered if you could help me and tell me how to do because i really don't get how to do them:
Solve the following pair of simultaneous equations.
Do not use a trial and improvement method.
3x + y = 9
4x - 2y = 7
Thanks in advance!