x*2+x+1=0

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Solution for x*2+x+1=0 equation:


Simplifying
x * 2 + x + 1 = 0

Reorder the terms for easier multiplication:
2x + x + 1 = 0

Reorder the terms:
1 + 2x + x = 0

Combine like terms: 2x + x = 3x
1 + 3x = 0

Solving
1 + 3x = 0

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 3x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 3x = 0 + -1
3x = 0 + -1

Combine like terms: 0 + -1 = -1
3x = -1

Divide each side by '3'.
x = -0.3333333333

Simplifying
x = -0.3333333333

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