3x-21x-54=0

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Solution for 3x-21x-54=0 equation:


Simplifying
3x + -21x + -54 = 0

Reorder the terms:
-54 + 3x + -21x = 0

Combine like terms: 3x + -21x = -18x
-54 + -18x = 0

Solving
-54 + -18x = 0

Solving for variable 'x'.

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

Add '54' to each side of the equation.
-54 + 54 + -18x = 0 + 54

Combine like terms: -54 + 54 = 0
0 + -18x = 0 + 54
-18x = 0 + 54

Combine like terms: 0 + 54 = 54
-18x = 54

Divide each side by '-18'.
x = -3

Simplifying
x = -3

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