Question

Solve for this equation for r: r+2s/2=6+t

Answer 1

R+2s/2=6+t
r+s=6+t (Divide 2s by 2 giving you just 2)
r=6+t-s (subtract s from both sides positive s and negative s cancel out leaving                         only r on the left and negative s on the right.)
the answer is
r=6+t-s

Answer 2

$r+\frac{2s}{2}=6+t\ \ \ \ \ \ \ |subtract\ \frac{2s}{2}\\\\r=6+t+\frac{2s}{2}\\\\r=6+t+s\\\\Answer\ is\ r=6+t+s.$