Question

8u+3-u+2u=9 please help me I really need help in this

Answer 1

8u + 3 - u + 2u = 9

(8 - 1 + 2)u + 3 = 9

9u + 3 = 9  |subtract 2 from both sides

9u = 6    |divide both sides by 9

u = 6/9

u = 2/3