4x+16=21x-21

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Solution for 4x+16=21x-21 equation:


Simplifying
4x + 16 = 21x + -21

Reorder the terms:
16 + 4x = 21x + -21

Reorder the terms:
16 + 4x = -21 + 21x

Solving
16 + 4x = -21 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
16 + 4x + -21x = -21 + 21x + -21x

Combine like terms: 4x + -21x = -17x
16 + -17x = -21 + 21x + -21x

Combine like terms: 21x + -21x = 0
16 + -17x = -21 + 0
16 + -17x = -21

Add '-16' to each side of the equation.
16 + -16 + -17x = -21 + -16

Combine like terms: 16 + -16 = 0
0 + -17x = -21 + -16
-17x = -21 + -16

Combine like terms: -21 + -16 = -37
-17x = -37

Divide each side by '-17'.
x = 2.176470588

Simplifying
x = 2.176470588

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