Question

`\text{Solve for x:}\\\\3x + 9 = 12\\\\\text{Thank you.}`

Answer 1

x = 1

Explanation:

(x + a = b

x = b - a)

or

(x + a = b

x + a - a = b - a [subtract both sides by a ]

x + 0 = b - a [ - a + a = 0 ]

x = b - a )

`3x + 9 = 12\\3x + 9 - 9 = 12 - 9\\3x + 0 = 3\\3x = 3\\\\(3x)/(3) = (3)/(3)\\\\x = 1`

Answer 2

Hi there!

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I believe your answer is:

`x = 1`

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Here’s why:

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`\boxed{\text{Calculating the Answer...}}\\\\3x+9=12\\--------\\\rightarrow 3x + 9 -9 = 12 - 9\\\\\rightarrow 3x = 3\\\\\rightarrow (3x=3)/(3)\\\\\rightarrow \boxed{x=1}`

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Hope this helps you. I apologize if it’s incorrect.