21x+4=31

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Solution for 21x+4=31 equation: 


Simplifying
21x + 4 = 31

Reorder the terms:
4 + 21x = 31

Solving
4 + 21x = 31

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 21x = 31 + -4

Combine like terms: 4 + -4 = 0
0 + 21x = 31 + -4
21x = 31 + -4

Combine like terms: 31 + -4 = 27
21x = 27

Divide each side by '21'.
x = 1.285714286

Simplifying
x = 1.285714286

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