X+6-4x=21

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


Simplifying
X + 6 + -4x = 21

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

Solving
6 + X + -4x = 21

Solving for variable 'X'.

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

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

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

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

Combine like terms: 21 + -6 = 15
X + -4x = 15

Add '4x' to each side of the equation.
X + -4x + 4x = 15 + 4x

Combine like terms: -4x + 4x = 0
X + 0 = 15 + 4x
X = 15 + 4x

Simplifying
X = 15 + 4x

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