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3(x-1)=2x+9. Solve equation

User Betafish
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2 Answers

17 votes
17 votes

Answer:

the answer should be -12= 2x

User James Evans
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19 votes
19 votes

Hello.

In order to solve this equation, we need to isolate the variable (in this case, the variable is x)

The first step is to use the Distributive Property and distribute 3:


\mathrm{3(x-1)=2x+9}


\mathrm{3x-3=2x+9}

Now, add 3 to both sides:


\mathrm{3x-3+3=2x+9+3}


\mathrm{3x=2x+9+3}


\mathrm{3x=2x+12}

Now, subtract 2x from both sides:


\mathrm{3x-2x=2x-2x+12}\\\mathrm{3x-2x=12}


\mathrm{x=12}

Therefore, the answer is


\mathrm{x=12}

I hope it helps.

Have a nice day.


\boxed{imperturbability}

User Chris Ferdinandi
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3.0k points