How to sustitute 6n+2f=736 and 10n+2f=920

How can you solve an equation with a variable on both sides? complete the explanation. you can solve the equation by using *(blank)* operations to get the variable terms on one side of the equal sign and the constant terms on the *(blank)* side. then *(blank)* both sides by the coefficient of the resulting variable term.

Can someone me and plz do the problem

15/16 as a decimal rounded to the nearest hundredth