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

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

Solving
6 + X = 21 + -4x

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 + -6 + X = 21 + -6 + -4x

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

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

Simplifying
X = 15 + -4x

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