21-5x=1

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Solution for 21-5x=1 equation: 


Simplifying
21 + -5x = 1

Solving
21 + -5x = 1

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -5x = 1 + -21

Combine like terms: 21 + -21 = 0
0 + -5x = 1 + -21
-5x = 1 + -21

Combine like terms: 1 + -21 = -20
-5x = -20

Divide each side by '-5'.
x = 4

Simplifying
x = 4

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