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Solve the linear equation.5x + 2 = 3x + 40The solution set is

Solve the linear equation.5x + 2 = 3x + 40The solution set is-example-1
User Alessio Campanelli
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1 Answer

6 votes
6 votes

To solve the equation, we can first get all the terms without x to the right side and all the terms with x to the lesft side.

We start by substracting 2 from both sides:


\begin{gathered} 5x+2=3x+40 \\ 5x+2-2=3x+40-2 \\ 5x=3x+38 \end{gathered}

Now, we substract 3x from both sides:


\begin{gathered} 5x=3x+38 \\ 5x-3x=3x-3x+38 \\ 2x=38 \end{gathered}

Now that we have only terms with x on the left side and only terms without x on the right side, we can finish the solve by dividing both sides by 2:


\begin{gathered} 2x=38 \\ (2x)/(2)=(38)/(2) \\ x=19 \end{gathered}

So, the solutions set is {19}.

User Dawid
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