I want to solve this simultaneous equation through elimination and I managed to solve for X and Y by finding X value first. I wanted do the equation again and solve by finding out Y but it didn't work for both equations. Can you explain to me why it didn't work?

The simultaneous equation s are:
7x - 5y = 20
8x - 3y = 12

Reply 4

Muttley79

20

Original post by AxeMazeChicken

I want to solve this simultaneous equation through elimination and I managed to solve for X and Y by finding X value first. I wanted do the equation again and solve by finding out Y but it didn't work for both equations. Can you explain to me why it didn't work?

The simultaneous equation s are:
7x - 5y = 20
8x - 3y = 12

Post what you did - you possibly made an error