7.5e+21=

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Solution for 7.5e+21= equation: 


Simplifying
7.5e + 21 = 0

Reorder the terms:
21 + 7.5e = 0

Solving
21 + 7.5e = 0

Solving for variable 'e'.

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

Add '-21' to each side of the equation.
21 + -21 + 7.5e = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 7.5e = 0 + -21
7.5e = 0 + -21

Combine like terms: 0 + -21 = -21
7.5e = -21

Divide each side by '7.5'.
e = -2.8

Simplifying
e = -2.8

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