Question 923660

Systems of Equations with Simple Elimination

-3x+2y=0

-5x-2y=-48

What does x= & y=?
<pre>- 3x + 2y =    0 ------- eq (i)
- 5x - 2y = - 48 ------- eq (ii)
- 8x      = - 48 ------- Adding eqs (ii) & (i)
{{{x = (- 48)/(- 8)}}}, or {{{highlight_green(x = 6)}}}

- 3(6) + 2y = 0 -------- Substituting 6 for x in eq (i) 
- 18 + 2y = 0
2y = 18
{{{y = 18/2}}}, or {{{highlight_green(y = 9)}}}