9. Clint has two beakers of saline solution. One beaker contains 60% salt
while the other beaker contains 40% salt. Clint needs to combine the
contents of the two beakers to make three liters with 46% salt. Let x
be the amount of 60% solution used and (3 - x) be the amount of 40%
solution used.
a. Write an equation that represents this situation.
b. How much of the 60% solution is needed to make the 46% solution?