Question 124587
2x+y=3 
now subtract 2x from both sides
2x-2x+y=-2x+3 now add the -2x & the +2x which =0.
y=-2x+3 answer.
s=5ph now divide both sides by 5p
s/5p=5ph/5p now cancel out the 5p/5p on the right side of the equation.  
s/5p=h answer.