determination of an amount using frfactions

Question

during the week a person earned 1/4 and 1/3 of her monthly bonus on two sale transactions. If those bonuses amounted to $840 how much was her monthly bonus?

Answer 1

Let x be the amount of the person's monthly bonus:

 

(1/4)x + (1/3)x = $840

(3/12)x + (4/12)x = $840

(7/12)x = $840

 

Can you finish solving for x?