solve for u. -3 + 2u + 6 = -8u - 7 u =

Explanation:

Step1: Combine like - terms on the left side

Combine $-3$ and $6$: $-3 + 2u+6=2u + 3$ So the equation becomes $2u + 3=-8u - 7$.

Step2: Add $8u$ to both sides

To get all $u$ terms on one side: $2u+8u + 3=-8u+8u - 7$ $10u + 3=-7$.

Step3: Subtract 3 from both sides

$10u+3 - 3=-7 - 3$ $10u=-10$.

Step4: Divide both sides by 10

$\frac{10u}{10}=\frac{-10}{10}$ $u=-1$.

Answer:

$-1$