4x - 2y - 3x + 5y = 4x - 3x + 5y - 2y = x + 3y
You use inclined planes by putting an object on something and push it down like a ramp.
Point slope form = y - y1 = m (x - x1)
y - 5 = -1 (x -(-1))
y - 5 = -1 (x+1)
Hope this helps :)
<em>20x</em>+20-4<em>-15x</em>=96-32
(next:subtract 96-32)
<em>20x</em>+20-4<em>-15x</em>=64
(next: then combine like terms)
<em>5x</em>+16=64
(next: subtract 16 from 64)
<em>5x</em>=48
(next: divide 48/5)
<em>x=9.6</em>
