For each value of U, determine whether it is a solution to,

4u-2=38

3, yes or no?

-7, yes or no?

-4, yes or no?

10, yes or no?

3 no 4 (-3) - 2 = 38 no - 12 - 2 = 38 - 14 = 38 no

-7 no 4 (-7) - 2 = 38 no - 28 - 2 = 38 - 30=38 no

-4 no 4 (-4) - 2 = 38 no - 16 - 2 = 38 - 18=38 no

10 yes 4 (10) - 2 = 38 yes 40 - 2 = 38 38 = 38 yes