In order to isolate any term from an equation we need to clear out any different variable or numbers different from the one we want
[tex]V=IR[/tex]in this case I is being multiplied by R, so we need to do the opposite which is divide in order to eliminate
[tex]V=\frac{IR}{R}[/tex]But since this is an equality we must do it on both sides so de equation does not get altered
[tex]\frac{V}{R}=\frac{IR}{R}[/tex]Then we simplify the equation
[tex]I=\frac{V}{R}[/tex]