Question

resuelve para u.
4(u - 7)=-3u - 7
reduce la respuesta al máximo.

Explanation:

Step1: Expand the left - hand side

$4(u - 7)=4u-28$, so the equation becomes $4u - 28=-3u - 7$.

Step2: Add $3u$ to both sides

$4u+3u - 28=-3u+3u - 7$, which simplifies to $7u - 28=-7$.

Step3: Add 28 to both sides

$7u-28 + 28=-7 + 28$, resulting in $7u = 21$.

Step4: Divide both sides by 7

$\frac{7u}{7}=\frac{21}{7}$, so $u = 3$.

Answer:

$u = 3$