(2/3)m tm= a + r, for m

m = √ 6 t ( a + r )/ 2 t   m = − √ 6 t ( a + r )/ 2 t

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

step-by-step explanation:

sry but any answer choices