21=e+(-3.48)

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Solution for 21=e+(-3.48) equation:


Simplifying
21 = e + (-3.48)
21 = e + -3.48

Reorder the terms:
21 = -3.48 + e

Solving
21 = -3.48 + e

Solving for variable 'e'.

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

Add '-1e' to each side of the equation.
21 + -1e = -3.48 + e + -1e

Combine like terms: e + -1e = 0
21 + -1e = -3.48 + 0
21 + -1e = -3.48

Add '-21' to each side of the equation.
21 + -21 + -1e = -3.48 + -21

Combine like terms: 21 + -21 = 0
0 + -1e = -3.48 + -21
-1e = -3.48 + -21

Combine like terms: -3.48 + -21 = -24.48
-1e = -24.48

Divide each side by '-1'.
e = 24.48

Simplifying
e = 24.48

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