Respuesta :
3(4x+7)-14=-31
12x+21-14=-31
12x+7=-31
12x=-31-7
12x=-38
x=-19/6 or -3 1/6 or -3.16
Answer:
x = -19/6
Step-by-step explanation:
Step 1: Distribute
3(4x + 7) - 14 = -31
(3 * 4x) + (3 * 7) - 14 = -31
12x + 21 - 14 = -31
Step 2: Combine like terms
12x + 21 - 14 = -31
12x + 7 = -31
Step 3: Subtract 7 from both sides
12x + 7 - 7 = -31 - 7
12x = -38
Step 4: Divide both sides by 12
12x / 12 = -38 / 12
x = (-38/2) / (12/2)
x = -19/6
Answer: x = -19/6