A variable needs to be eliminated to solve the system of equations below. Choose the correct first step. -3-9y=36
x-9y=12
Add to eliminate x
Subtract to eliminate x
Add to eliminate y
Subtract to eliminate y

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

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

you,

mrb

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0

step-by-step explanation:

mean or average is 40.6