42.2k views
0 votes
Find the value of x. Show all work.
(9x+9)°
45
5x

Find the value of x. Show all work. (9x+9)° 45 5x-example-1
User Atos
by
3.3k points

2 Answers

3 votes
Angles on a straight line add to 180 degrees. This means that the missing angle in the triangle is 180 - 9x + 9.

Next, angles in a triangle add up to 180 degrees. This means that:
45 + 5x + 180 - 9x + 9 = 180

We can simplify this down:
234 - 4x = 180

Now subtract 234 from both sides:
-4x = -54

Finally divide both sides by -4:
x = 13.5 degrees

Hope this helps!
User Kareem
by
3.1k points
7 votes

Angles are measured figures formed by two rays or lines that share a common endpoint, known as the vertex The value of x is 9.

To find the value of x in the equation (9x+9)° = 45 + 5x, we can follow these steps:

Simplify the left side of the equation:

(9x+9)° = 9x + 9

Set the left and right sides of the equation equal to each other:

9x + 9 = 45 + 5x

Subtract 5x from both sides of the equation:

4x + 9 = 45

Subtract 9 from both sides of the equation:

4x = 36

Divide both sides of the equation by 4:

x = 9

Therefore, the value of x is 9.

User Alaskan
by
3.3k points