105-3x=21x+18

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Solution for 105-3x=21x+18 equation:


Simplifying
105 + -3x = 21x + 18

Reorder the terms:
105 + -3x = 18 + 21x

Solving
105 + -3x = 18 + 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.
105 + -3x + -21x = 18 + 21x + -21x

Combine like terms: -3x + -21x = -24x
105 + -24x = 18 + 21x + -21x

Combine like terms: 21x + -21x = 0
105 + -24x = 18 + 0
105 + -24x = 18

Add '-105' to each side of the equation.
105 + -105 + -24x = 18 + -105

Combine like terms: 105 + -105 = 0
0 + -24x = 18 + -105
-24x = 18 + -105

Combine like terms: 18 + -105 = -87
-24x = -87

Divide each side by '-24'.
x = 3.625

Simplifying
x = 3.625

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