Respuesta :

The value of ST is 21

How to determine the value

Note that line S, U and T are points in a line segment

From the information given, we have that;

ST = TU

Where;

  • ST = 3x + 3
  • TU = 2x + 9

Substitute the values into the equation

3x + 3 = 2x + 9

collect like terms

3x - 2x = 9 - 3

Subtract like terms

x = 6

But we have that ST = 3x + 3 = 3(6) + 3 = 18 + 3 = 21

Thus, the value of ST is 21

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