Finding Angle Measures Using Equations

What is the value of X?

What is the measure of Angle (x+20)

What is the value of x?

What is the measure of angle (x-3)

If m∠RST = (12x -1)°, m∠RSU = (9x -15)°,
and m∠UST = 53°, find each measure.

• x = 13

  m∠RST = 155°

  m∠RSU = 102°

• x = 3

  m∠RST = 35°

  m∠RSU = 12°

• x = 22

  m∠RST = 263°

  m∠RSU = 183°

• x = 8

  m∠RST = 95°

  m∠RSU = 57°

Which is the correct equation to solve for x?

What is the value of x?