So you make your equation 4x+20+40=180.
Add like terms and get 4x+60=180.
Subtract 60 from both sides, get 4x=120.
Divide boths sides by 4, get your answer of x=30.
Hope this helps
They are all even numbers and divisible by 2
Now I could be completely wrong on this but I think you need to switch x and y
F(x)=6x-9
Turn it into x=6y-9 and then solve for y.
X+9=6y divide by 6 then
X/6+9/6=y then simply
X/6+3/2=y
Y=1/6x + 3/2
(X/6 can also be 1/6x FYI)
Answer:
3.07091228=x
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
tan theta = opp/ adj
tan 21 = x/8
8 tan 21 =x
3.07091228=x
