# Solve for x 1+2e^(x+1)=9

Solve for x 1+2e^(x+1)=9
Move all terms not containing to the right side of the equation.
Subtract from both sides of the equation.
Subtract from .
Divide each term by and simplify.
Divide each term in by .
Cancel the common factor of .
Cancel the common factor.
Divide by .
Divide by .
Take the natural logarithm of both sides of the equation to remove the variable from the exponent.
Expand the left side.
Expand by moving outside the logarithm.
The natural logarithm of is .
Multiply by .
Subtract from both sides of the equation.
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
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### Name

Name one hundred eighty-five million six hundred twenty-nine thousand nine hundred forty-four

### Interesting facts

• 185629944 has 32 divisors, whose sum is 835334856
• The reverse of 185629944 is 449926581
• Previous prime number is 3

### Basic properties

• Is Prime? no
• Number parity even
• Number length 9
• Sum of Digits 48
• Digital Root 3

### Name

Name two billion forty-two million six hundred thirty-nine thousand three hundred ninety-seven

### Interesting facts

• 2042639397 has 16 divisors, whose sum is 3028553280
• The reverse of 2042639397 is 7939362402
• Previous prime number is 1277

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 10
• Sum of Digits 45
• Digital Root 9

### Name

Name two billion one hundred thirty-seven million seven hundred nine thousand three hundred eleven

### Interesting facts

• 2137709311 has 4 divisors, whose sum is 2141506872
• The reverse of 2137709311 is 1139077312
• Previous prime number is 563

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 10
• Sum of Digits 34
• Digital Root 7