2x-21+6=x-3. how would you solve this

Me what is the value of x? showing work would be appreciated - ! : )

In which form is the following function written? y = - 2(x – 3)(x + 5)

Ialready asked this but i never got an answer. will give a high rating and perhaps brainliest. choose the linear inequality that describes the graph. the gray area represents the shaded region. y ≤ –4x – 2 y > –4x – 2 y ≥ –4x – 2 y < 4x – 2