3 years ago

Elena solved the equation 2(x – 9) = 10 In the following way. What mistake did she make?

2 answers:

7 0

She subtracted instead of adding.
2x-18=10
You add 18 to both sides
So it would be 2x=28
Then you divide 2 on both sides so x=14

4 0

Answer: Subtract 18 on both sides is wrong. Its supposed to be add 18 on both sides.

Step-by-step explanation:

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