21e^7x=25

Solution for 21e^7x=25 equation:

Simplifying
21e7x = 25

Solving
21e7x = 25

Solving for variable 'e'.

Move all terms containing e to the left, all other terms to the right.

Divide each side by '21x'.
e7 = 1.19047619x-1

Simplifying
e7 = 1.19047619x-1

Combine like terms: 1.19047619x-1 + -1.19047619x-1 = 0.00000000
e7 + -1.19047619x-1 = 0.00000000

Factor out the Greatest Common Factor (GCF), 'x-1'.
x-1(e7x + -1.19047619) = 0.00000000

Subproblem 1
Set the factor 'x-1' equal to zero and attempt to solve:

Simplifying
x-1 = 0

Solving
x-1 = 0

Move all terms containing e to the left, all other terms to the right.

Add '-1x-1' to each side of the equation.
x-1 + -1x-1 = 0 + -1x-1
Remove the zero:
0 = -1x-1

Simplifying
0 = -1x-1

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Subproblem 2
Set the factor '(e7x + -1.19047619)' equal to zero and attempt to solve:

Simplifying
e7x + -1.19047619 = 0

Reorder the terms:
-1.19047619 + e7x = 0

Solving
-1.19047619 + e7x = 0

Move all terms containing e to the left, all other terms to the right.

Add '1.19047619' to each side of the equation.
-1.19047619 + 1.19047619 + e7x = 0 + 1.19047619

Combine like terms: -1.19047619 + 1.19047619 = 0.00000000
0.00000000 + e7x = 0 + 1.19047619
e7x = 0 + 1.19047619

Combine like terms: 0 + 1.19047619 = 1.19047619
e7x = 1.19047619

Divide each side by 'x'.
e7 = 1.19047619x-1

Simplifying
e7 = 1.19047619x-1

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

The solution to this equation could not be determined.