Respuesta :

kalulesultan

Answer:

just know total angle sum is 180°

Step-by-step explanation:

[tex]52 + (15x + 3) + (3x - 1) = 180 \\ 52 + 3 - 1 + 15x + 3x = 180 \\ 54 + 18x = 180 \\ 18x = 180 - 54 \\ 18x = 126 \\ x = 7[/tex]

but give me a brainliest

S1NGH

Answer:

x = 7

Step-by-step explanation:

→ Find the sum of the angles

52 + 15x + 3 + 3x - 1 = 18x + 54

→ Wquate the expression to 180

18x + 54 = 180

→ Solve for x

x = 7