18x-21-15x=e

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Solution for 18x-21-15x=e equation:


Simplifying
18x + -21 + -15x = e

Reorder the terms:
-21 + 18x + -15x = e

Combine like terms: 18x + -15x = 3x
-21 + 3x = e

Solving
-21 + 3x = e

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 3x = 21 + e

Combine like terms: -21 + 21 = 0
0 + 3x = 21 + e
3x = 21 + e

Divide each side by '3'.
x = 7 + 0.3333333333e

Simplifying
x = 7 + 0.3333333333e

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