12x-21x-1=0

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Solution for 12x-21x-1=0 equation:


Simplifying
12x + -21x + -1 = 0

Reorder the terms:
-1 + 12x + -21x = 0

Combine like terms: 12x + -21x = -9x
-1 + -9x = 0

Solving
-1 + -9x = 0

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + -9x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -9x = 0 + 1
-9x = 0 + 1

Combine like terms: 0 + 1 = 1
-9x = 1

Divide each side by '-9'.
x = -0.1111111111

Simplifying
x = -0.1111111111

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