21x-6=20x

Solution for 21x-6=20x equation:

Simplifying
21x + -6 = 20x

Reorder the terms:
-6 + 21x = 20x

Solving
-6 + 21x = 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
-6 + 21x + -20x = 20x + -20x

Combine like terms: 21x + -20x = 1x
-6 + 1x = 20x + -20x

Combine like terms: 20x + -20x = 0
-6 + 1x = 0

Add '6' to each side of the equation.
-6 + 6 + 1x = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 1x = 0 + 6
1x = 0 + 6

Combine like terms: 0 + 6 = 6
1x = 6

Divide each side by '1'.
x = 6

Simplifying
x = 6