Simplify. (a−b+c)−(c+b)

a -2b

Step-by-step explanation:

(a−b+c)−(c+b)

Distribute the minus sign

a-b+c  -c -b

Combine like terms

a -b -b +c-c

a -2b

a - 2b

Step-by-step explanation:

(a - b + c) - (c + b)

= a - b + c - c - b

= a - 2b

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

sorry not knowing about that