-7c+3=-5c^2

Solution for -7c+3=-5c^2 equation:

Simplifying
-7c + 3 = -5c2

Reorder the terms:
3 + -7c = -5c2

Solving
3 + -7c = -5c2

Solving for variable 'c'.

Combine like terms: -5c2 + 5c2 = 0
3 + -7c + 5c2 = 0

Begin completing the square.  Divide all terms by
5 the coefficient of the squared term: 

Divide each side by '5'.
0.6 + -1.4c + c2 = 0

Move the constant term to the right:

Add '-0.6' to each side of the equation.
0.6 + -1.4c + -0.6 + c2 = 0 + -0.6

Reorder the terms:
0.6 + -0.6 + -1.4c + c2 = 0 + -0.6

Combine like terms: 0.6 + -0.6 = 0.0
0.0 + -1.4c + c2 = 0 + -0.6
-1.4c + c2 = 0 + -0.6

Combine like terms: 0 + -0.6 = -0.6
-1.4c + c2 = -0.6

The c term is -1.4c.  Take half its coefficient (-0.7).
Square it (0.49) and add it to both sides.

Add '0.49' to each side of the equation.
-1.4c + 0.49 + c2 = -0.6 + 0.49

Reorder the terms:
0.49 + -1.4c + c2 = -0.6 + 0.49

Combine like terms: -0.6 + 0.49 = -0.11
0.49 + -1.4c + c2 = -0.11

Factor a perfect square on the left side:
(c + -0.7)(c + -0.7) = -0.11

Can't calculate square root of the right side.

The solution to this equation could not be determined.