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3 votes

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

2 Answers

2 votes

Answer:

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

User Dgolovin
by
7.9k points
6 votes

Hi there!

»»————- ★ ————-««

I believe your answer is:


x = 1

»»————- ★ ————-««

Here’s why:

⸻⸻⸻⸻


\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}

⸻⸻⸻⸻

»»————- ★ ————-««

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

User Jerry Li
by
7.8k points

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