3x+4=21x

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Solution for 3x+4=21x equation:


Simplifying
3x + 4 = 21x

Reorder the terms:
4 + 3x = 21x

Solving
4 + 3x = 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.
4 + 3x + -21x = 21x + -21x

Combine like terms: 3x + -21x = -18x
4 + -18x = 21x + -21x

Combine like terms: 21x + -21x = 0
4 + -18x = 0

Add '-4' to each side of the equation.
4 + -4 + -18x = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -18x = 0 + -4
-18x = 0 + -4

Combine like terms: 0 + -4 = -4
-18x = -4

Divide each side by '-18'.
x = 0.2222222222

Simplifying
x = 0.2222222222

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