Which equation can be used to solve for x in the following diagram?

A) 3x + (8x – 20) = 90

B) 3x = (8x – 20)

C) 3x + 90 = (8x – 20)

D) 3x + (8x – 20) = 180

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# Which equation can be used to solve for x in the following diagram?
A) 3x + (8x –

A) 3x + (8x – 20) = 90

B) 3x = (8x – 20)

C) 3x + 90 = (8x – 20)

D) 3x + (8x – 20) = 180