Respuesta :

wegnerkolmp2741o

Answer:

x = 5

Step-by-step explanation:

If it is equilateral, that means all sides are equal

30 = 4x+10

Subtract 10 from each side

30-10 =4x

20 = 4x

Divide by 4

20/4 = 4x/4

5 = x
ANSWER-

5=x

STEP BY STEP-

30=4x+10
(-10 from each side)
20=4x
(/4 from each side)
5=x

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