-3x+9=21x-6

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Solution for -3x+9=21x-6 equation:


Simplifying
-3x + 9 = 21x + -6

Reorder the terms:
9 + -3x = 21x + -6

Reorder the terms:
9 + -3x = -6 + 21x

Solving
9 + -3x = -6 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
9 + -3x + -21x = -6 + 21x + -21x

Combine like terms: -3x + -21x = -24x
9 + -24x = -6 + 21x + -21x

Combine like terms: 21x + -21x = 0
9 + -24x = -6 + 0
9 + -24x = -6

Add '-9' to each side of the equation.
9 + -9 + -24x = -6 + -9

Combine like terms: 9 + -9 = 0
0 + -24x = -6 + -9
-24x = -6 + -9

Combine like terms: -6 + -9 = -15
-24x = -15

Divide each side by '-24'.
x = 0.625

Simplifying
x = 0.625

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