If you rearrange the equation so w is the independent variable, then what is u?

-2u+6w=9

u = - (9-6w) / 2

Step-by-step explanation:

to evaluate for u in the expression - 2u+6w=9 is simply to look for a way such that we would express u in terms of w and other variables.

solution

-2u+6w=9

-2u = 9 - 6w

divide both sides by the coefficient of u which is - 2

-2u/u = 9 - 6w/-2

u = - (9-6w) / 2

therefore the value of u when rearranged in the equation - 2u+6w=9 is evaluated to be equals to

u = - (9-6w) / 2