21+3x=5

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Solution for 21+3x=5 equation: 


Simplifying
21 + 3x = 5

Solving
21 + 3x = 5

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 + 3x = 5 + -21

Combine like terms: 21 + -21 = 0
0 + 3x = 5 + -21
3x = 5 + -21

Combine like terms: 5 + -21 = -16
3x = -16

Divide each side by '3'.
x = -5.333333333

Simplifying
x = -5.333333333

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