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Mathematics 18 Online
OpenStudy (chasepit):

Ciara solved the exponential equation 3x+1 = 15 and her work is shown below. What is the first step she did incorrectly? Step 1: log 3x+1 = log15 Step 2: (x + 1)log 3 = log15 Step 3: log3 = log 15 over x plus 1 Step 4: 0.477121 = 1.176091 over x plus 1 Step 5: 0.477121(x + 1) = 1.176091 Step 6: x + 1 = 1.176091 over 0.477121 Step 7: x + 1 = 2.464975 Step 8: x = 1.464975

OpenStudy (chasepit):

@SageWilson

OpenStudy (chasepit):

would it be step 3?

OpenStudy (sagewilson):

Give me a minute to look this over.

OpenStudy (sagewilson):

Yeah, I'd say step 3 as well.

OpenStudy (chasepit):

thanks

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