10x+21=0

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Solution for 10x+21=0 equation: 


Simplifying
10x + 21 = 0

Reorder the terms:
21 + 10x = 0

Solving
21 + 10x = 0

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 + 10x = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 10x = 0 + -21
10x = 0 + -21

Combine like terms: 0 + -21 = -21
10x = -21

Divide each side by '10'.
x = -2.1

Simplifying
x = -2.1

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