Respuesta :

Answer:

x = 6

Step-by-step explanation:

Since the triangles are congruent, then corresponding sides are congruent, that is

QS = TV , substitute values

6x + 12 = 9x - 6 ( subtract 6x from both sides )

12 = 3x - 6 ( add 6 to both sides )

18 = 3x ( divide both sides by 3 )

6 = x

Answer:

x = 6

Step-by-step explanation:

x = ?

6x + 12 = 9x - 6

get the variables and numbers on different sides

6x + 12 - 6x = 12

9x - 6 + 6 = 9x

12 + 6 = 18

9x - 6x = 3x

3x = 18

divided each side by 3

3x / 3 = x

18 / 3 = 6

x = 6

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