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2 years ago

Please help me with this. I need to solve for x. 4ln(7x+3)+12=40

Mathematics

1 answer:

tatiyna2 years ago

7 0

Answer:

$x=\frac{e^7-3}{7}$

Step-by-step explanation:

4* ln(7x+3) + 12 = 40

4* ln(7x+3) + 12 - 12 = 40 - 12

4* ln(7x+3) = 28

ln(7x+3) = 28/4

ln(7x+3) = 7

e^7 = (7x + 3)

e^7 - 3 = 7x

$x=\frac{e^7-3}{7}$

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