.66666666667x+15=21

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Solution for .66666666667x+15=21 equation: 


Simplifying
0.66666666667x + 15 = 21

Reorder the terms:
15 + 0.66666666667x = 21

Solving
15 + 0.66666666667x = 21

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 0.66666666667x = 21 + -15

Combine like terms: 15 + -15 = 0
0 + 0.66666666667x = 21 + -15
0.66666666667x = 21 + -15

Combine like terms: 21 + -15 = 6
0.66666666667x = 6

Divide each side by '0.66666666667'.
x = 9

Simplifying
x = 9

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