Martina

Martina is solving the equation 4x - 11 = 2x + 391. Here are the first steps of her solution.

4x - 11 = 2x + 391

2x - 11 = 391

2x = 402

What did Martina do to get 2x - 11 = 391?

Correct answer:

x =  201

Step-by-step explanation:

4x11=2x+391  4 x11=2 x+391  2x=402  x=201=201



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Marie
Answer to previous question is: She subtracted 2x from both sides of equation. 4x-2x=2x on left and 2x-2x = 0 on right. 

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