Solve x/-4 - (-8) =12
16
80
-80
-16

x = -16.

Step-by-step explanation:

x/-4 - (-8) = 12

x/-4 + 8 = 12

x/-4 = 12 - 8

x/-4 = 4

Cross multiply:

x = -4 * 4

x = -16.

2/3

step-by-step explanation:

the slope of a line is equal to the rise/run. in this case the line rises 2 units for every +3 units it moves

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b