21x-3=20

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Solution for 21x-3=20 equation: 


Simplifying
21x + -3 = 20

Reorder the terms:
-3 + 21x = 20

Solving
-3 + 21x = 20

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 = 20 + 3

Combine like terms: -3 + 3 = 0
0 + 21x = 20 + 3
21x = 20 + 3

Combine like terms: 20 + 3 = 23
21x = 23

Divide each side by '21'.
x = 1.095238095

Simplifying
x = 1.095238095

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