12-3x+9-18x=

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Solution for 12-3x+9-18x= equation:


Simplifying
12 + -3x + 9 + -18x = 0

Reorder the terms:
12 + 9 + -3x + -18x = 0

Combine like terms: 12 + 9 = 21
21 + -3x + -18x = 0

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

Solving
21 + -21x = 0

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -21x = 0 + -21

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

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

Divide each side by '-21'.
x = 1

Simplifying
x = 1

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