138=6x+9

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Solution for 138=6x+9 equation:


Simplifying
138 = 6x + 9

Reorder the terms:
138 = 9 + 6x

Solving
138 = 9 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
138 + -6x = 9 + 6x + -6x

Combine like terms: 6x + -6x = 0
138 + -6x = 9 + 0
138 + -6x = 9

Add '-138' to each side of the equation.
138 + -138 + -6x = 9 + -138

Combine like terms: 138 + -138 = 0
0 + -6x = 9 + -138
-6x = 9 + -138

Combine like terms: 9 + -138 = -129
-6x = -129

Divide each side by '-6'.
x = 21.5

Simplifying
x = 21.5

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