e*x+3=21

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Solution for e*x+3=21 equation: 


Simplifying
e * x + 3 = 21

Multiply e * x
ex + 3 = 21

Reorder the terms:
3 + ex = 21

Solving
3 + ex = 21

Solving for variable 'e'.

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

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

Combine like terms: 3 + -3 = 0
0 + ex = 21 + -3
ex = 21 + -3

Combine like terms: 21 + -3 = 18
ex = 18

Divide each side by 'x'.
e = 18x-1

Simplifying
e = 18x-1

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