Respuesta :

Answer:

x = -8

Step-by-step explanation:

1. Because the line the angles x + 96 and 100 + x are on is straight, it's a straight angle that results in 180°.

2. Given the above information, that means x + 96 + 100 + x = 180.

3. (Solving for equation above)

Step 1: Simplify both sides of the equation.

  • [tex](x+x) + (96+100)=180[/tex]
  • [tex]2x + 196 = 180[/tex]

Step 2: Subtract 196 from both sides.

  • [tex]2x + 196 - 196 = 180 - 196[/tex]
  • [tex]2x = -16[/tex]

Step 3: Divide both sides by 2.

  • [tex]\frac{2x}{2} = \frac{-16}{2}[/tex]
  • [tex]x = -8[/tex]

Step 4: Check if solution is correct.

  • [tex]-8 + 96 + 100 - 8 = 180[/tex]
  • [tex]88 + 100 - 8 = 180[/tex]
  • [tex]188-8=180[/tex]
  • [tex]180=180[/tex]

Therefore, x = -8.

Answer:

x = - 8

Step-by-step explanation:

x + 96 and 100 + x are adjacent angles on a straight line and sum to 180°, so

x + 96 + 100 + x = 180 , that is

2x + 196 = 180 ( subtract 196 from both sides )

2x = - 16 ( divide both sides by 2 )

x = - 8