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Solve: 3(x + 5) = 2x + 35 Step 1: 3x + 15 = 2x + 35 Step 2: 5x + 15 = 35 Step 3: 5x = 20 Step 4: x = 4 Which is the first incorrect step in the solution shown below?
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Solve: 3(x + 5) = 2x + 35

Step 1: 3x + 15 = 2x + 35
Step 2: 5x + 15 = 35
Step 3: 5x = 20
Step 4: x = 4
Which is the first incorrect step in the solution shown below?

User Tjmoore
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1 Answer

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Step 2 is incorrect because you have to subtract 2 from both sides not add to both sides. 2 was subtracted from one side and added to the other...
User Japreiss
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