4x - 9 = 2x
Solve for x.
4x = 2x + 9
2x = 9
x = 4.5
We can plug 4.5 into the original equation to verify if it's correct.
4x - 9 = 2x
4(4.5) - 9 = 2(4.5)
18 - 9 = 9
The equation is true, and so x = 4.5
Answer:
if f(x) = ax + b then f-1(x) = (x - b)/a
Step-by-step explanation:
Now
f(x)=ax + b
then y = ax + b
interchanging x and y , we get
or, x = ay + b
or, x - b = ay
or, (x - b)/a = y
therefore,f-1(x) = (x - b)/a
1. subtract 5 on both sides
-3x=15
2. divide by -3 on both sides
x=-5
Vertical because y= vertical. Have a good day! and if you need help ask questions!!
Step-by-step explanation:
The vertex of an angle is the point where two rays begin or segments join, where two lines intersect segments and lines that result in two straight "sides" meeting at one place.
if my answer helps you than mark me as brainliest..