21=6-4-4x

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


Simplifying
21 = 6 + -4 + -4x

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

Solving
21 = 2 + -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.
21 + 4x = 2 + -4x + 4x

Combine like terms: -4x + 4x = 0
21 + 4x = 2 + 0
21 + 4x = 2

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

Combine like terms: 21 + -21 = 0
0 + 4x = 2 + -21
4x = 2 + -21

Combine like terms: 2 + -21 = -19
4x = -19

Divide each side by '4'.
x = -4.75

Simplifying
x = -4.75

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