In order for the triangle to be isosceles, we have to set two lengths of the triangle equal to each other.
Let's take the lengths 5x-12 and x+20 and set them equal to each other.
5x - 12 = x + 20
Combine like terms by moving them over to their respective sides.
Subtract x from both sides of the equation.
4x - 12 = 20
Add 12 to both sides of the equation.
4x = 32
Divide both sides by 4.
x = 8
Check your answer by substituting.
5x - 12 = x + 20
5(8) - 12 = 8 + 20
40 - 12 = 28
28 = 28
Solution: x = 8
ill do ur hw for cashapp
insta
kk_iwi
txt and ill give u the deatails
Answer:
76ft^2
Step-by-step explanation:
do 18xpi to get the area
you get 57
it says every 3 cm is four ft so divide 57 by 3
you get 19 thats how many 4ft there are
then do 19x4 because thats how much each 3cm is in ft
you get 76
and since its area its ft^2
x = 2
Collect terms in x to one side of the equation and numeric values on the other side.
1 + 4x = - 5 + 7x ( subtract 7x from both sides )
1 + 4x - 7x = - 5
1 - 3x = - 5 ( subtract 1 from both sides )
- 3x = - 6 ( divide both sides by - 3 )
x = 
= 2
