X+21=4x+4

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


Simplifying
X + 21 = 4x + 4

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

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

Solving
21 + X = 4 + 4x

Solving for variable 'X'.

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

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

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

Combine like terms: 4 + -21 = -17
X = -17 + 4x

Simplifying
X = -17 + 4x

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