21x-3=4

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Solution for 21x-3=4 equation: 


Simplifying
21x + -3 = 4

Reorder the terms:
-3 + 21x = 4

Solving
-3 + 21x = 4

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 21x = 4 + 3

Combine like terms: -3 + 3 = 0
0 + 21x = 4 + 3
21x = 4 + 3

Combine like terms: 4 + 3 = 7
21x = 7

Divide each side by '21'.
x = 0.3333333333

Simplifying
x = 0.3333333333

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