Question

If7+4y=5 then -y3-(-y)=

Answer 1

Explanation:

ify_19 is answer. ok ok ok

Answer 2

Answer:

$7 + 4y = 5 \\ 4y = 5 - 7 \\ 4y = - 2 \\ y = - 0.5 \\ - y3 - ( - y) = - y3 + y \\ = - ( - 0.5)3 + ( - 0.5) \\ = 0.5 \times 3 - 0.5 = 1.5 - 0.5 = 1$