Solve each system
9x- y= -6
I know how to solve for x
but i get really lost trying to figure out how to solve for the second variable
whats the value of x?
then i can do the rest of it;posted by Kristin;
see the question below you entered. there is no need to enter them twice.
posted by bobpursley
Two pumps can fill a water tank in 256minutes when working together. Alone, the second pump takes 4times as long as the first to fill the tank.
How many minutes would it take the first pump to fill the tank?
It will take
minutes for the first pump to fill the tank.posted by Anonymous