I can't do the steps as if now, that will take time and I've got a lot of work to do. Sorry about that.
anyone else im so lost
To create a new system of equation with the conditions given, let's take for example the first equation: \[-3x+7y=-16\] And let's forget about the "=" sign and center on the following expression: \[-3x+7y+16\] So I will add to it the second equation, multiplied by any number... let's say... 10... \[(-3x+7y+16)+(10)(-9x+5y-16)\] So, doing some simple algebra: \[(-3x+7y+16)-90x+50y-160\] Ending up with: \[-93x+57y-144\] And for the second part you'll have to solve the new system of equation formed by the new equation: \[-93x+57y=144\] \[-9x+5y=16\]
ty so much