3-m=-2(m+6) plz i'm studying for a test

m= -15

Step-by-step explanation:

3-m=-2(m+6)

3-m =-2m - 12

-m= -2m -15

m=-15

3- (-15) =30-12

3+15=30-12

18=18

i'm sorry i don't know

step-by-step explanation:

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