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11-07-2020
Mathematics

contestada

What is the solution to this equation?
9x - 4(x - 2) = x+ 20
O A. x= 7
O B. x = 3
O c. X=-3
O D. x=-7

Respuesta :

11-07-2020

Answer:

B

Step-by-step explanation:

9x - 4(x - 2) = x + 20

9x - 4x + 8 = x + 20 (Distribute 4)

5x + 8 = x + 20 (Combine like terms)

4x + 8 = 20 (Subtract x from both sides)

4x = 12 (Subtract 8 from both sides)

x = 3 (Divide equation by 4)

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