To solve for a variable, isolate that variable onto one side.
17.
Firstly, multiply both sides by 5/2: [tex]z+1=\frac{5}{2}y[/tex]
Next, subtract both sides by 1 and your answer will be [tex]z=\frac{5}{2}y-1[/tex]
18.
Firstly, divide both sides by g: [tex]h+\frac{2}{3}=\frac{1}{g}[/tex]
Next, subtract both sides by 2/3 and your answer will be: [tex]h=\frac{1}{g}-\frac{2}{3}[/tex]
19.
Firstly, foil a(n - 3): [tex]an-3a+8=bn[/tex]
Next, subtract an on both sides: [tex]-3a+8=bn-an[/tex]
Next, factor out n on the right side of the : [tex]-3a+8=(b-a)n[/tex]
Lastly, divide both sides by (b - a) and your answer will be: [tex]\frac{-3a+8}{b-a}=n[/tex]
