21x+7=0

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Solution for 21x+7=0 equation: 


Simplifying
21x + 7 = 0

Reorder the terms:
7 + 21x = 0

Solving
7 + 21x = 0

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 21x = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 21x = 0 + -7
21x = 0 + -7

Combine like terms: 0 + -7 = -7
21x = -7

Divide each side by '21'.
x = -0.3333333333

Simplifying
x = -0.3333333333

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