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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 above?
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2 votes
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 above?

User TalESid
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2 Answers

1 vote
The incorrect step is Step 2. You were supposed to subtract 2x and not add it. 
User MadJlzz
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8.4k points
3 votes
step 2 and all that follows is wrong because it should equal 20
User Ginger
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8.4k points
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