Whoever gives the most explanation will receive: brainliest answer, 5 stars, and a you.

attachments below!

For number 12 Since −x - x does not contain the variable to solve for, move it to the right side of the equation by adding x x to both sides. Use the slope-intercept form to find the slope and y-intercept. The slope-intercept form is y=m x+b y = m x + b , where m m is the slope and b b is the y-intercept. I hope this helps. 

We need the pictures of the graphs