[tex]\frac{y+y}{a} = b[/tex] Multiple "a" on both sides
[tex]\frac{y + y}{a} (a) = b(a)[/tex]
y + y = ab
2y = ab Divide 2 on both sides
[tex]\frac{2y}{2} =\frac{ab}{2}[/tex]
[tex]y = \frac{ab}{2}[/tex]
y = [tex]\frac{ab}{2}[/tex]
given [tex]\frac{y+y}{a}[/tex] = b, that is
[tex]\frac{2y}{a}[/tex] = b ( multiply both sides by a )
2y = ab ( divide both sides by 2 )
