\(\begin{align*} 4x-3y&=2a,\\ 2x+y&=3a, \end{align*}\)

If the solution (x,y) works and x=3 what is the value of a?

SydSu22 Oct 29, 2018

#1**+2 **

Multiply second equation by '3' then add the two equations together to get

10x = 11a and with x= 3

30 = 11 a or a = 30/11

ElectricPavlov Oct 29, 2018