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Can someone please help me?

Can someone please help me?-example-1
User MickG
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1 Answer

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Tessa made a mistake on line 3.

As you can see, the line below says 8x+12=-20. This is perfectly fine. Though when she gets rid of 12, she adds twelve. So if she did, it would look like 8x+24=-8. No, she made it 8x=-8. When getting rid of something, you must do it's value's opposite. Therefore, it would be 8x=-32. Since subtracting negative by negative is negative.

User Tine
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