Question

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

Answer 1

@ParthKohli

Answer 2

@ganeshie8 @Abhisar

Answer 3

@nincompoop @imqwerty

Answer 4

hey :)

Answer 5

what do you think it is :)

Answer 6

step 3?

Answer 7

what about step 2?
why do u think its correct