21x-6=15

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Solution for 21x-6=15 equation: 


Simplifying
21x + -6 = 15

Reorder the terms:
-6 + 21x = 15

Solving
-6 + 21x = 15

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 21x = 15 + 6

Combine like terms: -6 + 6 = 0
0 + 21x = 15 + 6
21x = 15 + 6

Combine like terms: 15 + 6 = 21
21x = 21

Divide each side by '21'.
x = 1

Simplifying
x = 1

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