36+x=2(11+x)
36+x=22+2x
minus x both sides
36=22+x
minus 22 both sides
14=x
answer is in 14 years
You need to get y alone for both equations. for x-y=7, you subract x from both sides. (giving you -y = 7 - x) then, multiply the whole equation by -1 to make the y positive, which gives you y = x - 7.
here is the system in y intercept form so you can graph it easier:
*y = x - 7
*y = x + 4
(x+2)^2=4(y-3) is an equation
Answer:
-2x³+4x
Step-by-step explanation:
g(x) + f(x)
(2x) + (-2x³+2x)
-2x³+4x
