exp(-x)+1-x=0

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Solution for exp(-x)+1-x=0 equation:


Simplifying
exp(-1x) + 1 + -1x = 0

Remove parenthesis around (-1x)
epx * -1x + 1 + -1x = 0

Reorder the terms for easier multiplication:
-1epx * x + 1 + -1x = 0

Multiply epx * x
-1epx2 + 1 + -1x = 0

Reorder the terms:
1 + -1epx2 + -1x = 0

Solving
1 + -1epx2 + -1x = 0

Solving for variable 'e'.

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

Add '-1' to each side of the equation.
1 + -1epx2 + -1 + -1x = 0 + -1

Reorder the terms:
1 + -1 + -1epx2 + -1x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1epx2 + -1x = 0 + -1
-1epx2 + -1x = 0 + -1

Combine like terms: 0 + -1 = -1
-1epx2 + -1x = -1

Add 'x' to each side of the equation.
-1epx2 + -1x + x = -1 + x

Combine like terms: -1x + x = 0
-1epx2 + 0 = -1 + x
-1epx2 = -1 + x

Divide each side by '-1px2'.
e = p-1x-2 + -1p-1x-1

Simplifying
e = p-1x-2 + -1p-1x-1

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