105-2x=4x+21

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Solution for 105-2x=4x+21 equation:


Simplifying
105 + -2x = 4x + 21

Reorder the terms:
105 + -2x = 21 + 4x

Solving
105 + -2x = 21 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
105 + -2x + -4x = 21 + 4x + -4x

Combine like terms: -2x + -4x = -6x
105 + -6x = 21 + 4x + -4x

Combine like terms: 4x + -4x = 0
105 + -6x = 21 + 0
105 + -6x = 21

Add '-105' to each side of the equation.
105 + -105 + -6x = 21 + -105

Combine like terms: 105 + -105 = 0
0 + -6x = 21 + -105
-6x = 21 + -105

Combine like terms: 21 + -105 = -84
-6x = -84

Divide each side by '-6'.
x = 14

Simplifying
x = 14

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