20+4x=6x-21

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Solution for 20+4x=6x-21 equation:


Simplifying
20 + 4x = 6x + -21

Reorder the terms:
20 + 4x = -21 + 6x

Solving
20 + 4x = -21 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
20 + 4x + -6x = -21 + 6x + -6x

Combine like terms: 4x + -6x = -2x
20 + -2x = -21 + 6x + -6x

Combine like terms: 6x + -6x = 0
20 + -2x = -21 + 0
20 + -2x = -21

Add '-20' to each side of the equation.
20 + -20 + -2x = -21 + -20

Combine like terms: 20 + -20 = 0
0 + -2x = -21 + -20
-2x = -21 + -20

Combine like terms: -21 + -20 = -41
-2x = -41

Divide each side by '-2'.
x = 20.5

Simplifying
x = 20.5

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