s^2+7s=-19

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Solution for s^2+7s=-19 equation:


Simplifying
s2 + 7s = -19

Reorder the terms:
7s + s2 = -19

Solving
7s + s2 = -19

Solving for variable 's'.

Reorder the terms:
19 + 7s + s2 = -19 + 19

Combine like terms: -19 + 19 = 0
19 + 7s + s2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-19' to each side of the equation.
19 + 7s + -19 + s2 = 0 + -19

Reorder the terms:
19 + -19 + 7s + s2 = 0 + -19

Combine like terms: 19 + -19 = 0
0 + 7s + s2 = 0 + -19
7s + s2 = 0 + -19

Combine like terms: 0 + -19 = -19
7s + s2 = -19

The s term is 7s.  Take half its coefficient (3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
7s + 12.25 + s2 = -19 + 12.25

Reorder the terms:
12.25 + 7s + s2 = -19 + 12.25

Combine like terms: -19 + 12.25 = -6.75
12.25 + 7s + s2 = -6.75

Factor a perfect square on the left side:
(s + 3.5)(s + 3.5) = -6.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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