Finally, to simplify: x0? -a? =5y0? ①
And then go to x0? /a? -What about you? /b? = 1 simplified b? x0? -a? y0? =a? b? ②
Get 5b while eliminating x0? y0? +a? b? -a? y0? =a? b?
Eliminate y0 on both sides? What about a? b? Get 5b? =a?