Question

Find the value of X.

Answer 1

Both angles are adjacent and lie on a line, thus the sum of their angle measures is 180°. Let’s create an equation to solve for “x:”

(x-4)°+(2x+1)°=180°

Combine like terms and cancel the degree symbols:

3x-3=180

Add 3 to both sides:

3x=180+3

3x=183

Divide both sides by 3:

x=183/3

x=61

Answer 2

X = 61, Angle 57 and 123

Explanation:

If you could provide the exact question that would be great, but from the information given what we know is that the entirety of half of a circle is 180 degrees so the angle at x-4 and the angle and 2x+1 must be equal to 180 degrees.

Therefore:

x-4 + 2x+1 = 180 degrees

X = 61, Therefore:

x-4 --> 61 -4 = 57 degrees

2x+1 ---> 2(61) +1 = 123 degrees

So:

The angles are 57 degrees for x-4 and 123 for 2x+1 .