21x+8=5

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Solution for 21x+8=5 equation: 


Simplifying
21x + 8 = 5

Reorder the terms:
8 + 21x = 5

Solving
8 + 21x = 5

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 21x = 5 + -8

Combine like terms: 8 + -8 = 0
0 + 21x = 5 + -8
21x = 5 + -8

Combine like terms: 5 + -8 = -3
21x = -3

Divide each side by '21'.
x = -0.1428571429

Simplifying
x = -0.1428571429

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