Question 1057037

solve the system of equations using elimination. all work must be shown please help.

  x+9=28  -5x+8y=19
<pre>Assuming the 9 in x + 9 = 28 is actually 9y, we get:
   x + 9y = 28 ------ eq (i)
- 5x + 8y = 19 ------ eq (ii)
All you have to do is multiply eq (i) by 5 to get a new equation: eq (iii).
Add eq (iii) to eq (ii) to <b><u>ELIMINATE</b></u> x and solve for y
Substitute value of y into any of the 2 original equations [eq (i) is the easier of the 2], and then solve for x.
There you go!! Nothing complex!