Respuesta :

chloephillips125

Answer:

D. 7

Step-by-step explanation:

(8+4) = 2(x-1) multiply (x-1) by 2

(8+4) = 2x-2 add 8 and 4

12 = 2x-2 add 2 on both sides

14 = 2x divide both sides by 2

7 = x

abelfvf
Answer is D

12 = 2x - 2

14 = 2x

14/2 = x

7 = x

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