7a^2+2+a+6+3+2a-1=

Solution for 7a^2+2+a+6+3+2a-1= equation:

Simplifying
7a2 + 2 + a + 6 + 3 + 2a + -1 = 0

Reorder the terms:
2 + 6 + 3 + -1 + a + 2a + 7a2 = 0

Combine like terms: 2 + 6 = 8
8 + 3 + -1 + a + 2a + 7a2 = 0

Combine like terms: 8 + 3 = 11
11 + -1 + a + 2a + 7a2 = 0

Combine like terms: 11 + -1 = 10
10 + a + 2a + 7a2 = 0

Combine like terms: a + 2a = 3a
10 + 3a + 7a2 = 0

Solving
10 + 3a + 7a2 = 0

Solving for variable 'a'.

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

Divide each side by '7'.
1.428571429 + 0.4285714286a + a2 = 0

Move the constant term to the right:

Add '-1.428571429' to each side of the equation.
1.428571429 + 0.4285714286a + -1.428571429 + a2 = 0 + -1.428571429

Reorder the terms:
1.428571429 + -1.428571429 + 0.4285714286a + a2 = 0 + -1.428571429

Combine like terms: 1.428571429 + -1.428571429 = 0.000000000
0.000000000 + 0.4285714286a + a2 = 0 + -1.428571429
0.4285714286a + a2 = 0 + -1.428571429

Combine like terms: 0 + -1.428571429 = -1.428571429
0.4285714286a + a2 = -1.428571429

The a term is 0.4285714286a.  Take half its coefficient (0.2142857143).
Square it (0.04591836735) and add it to both sides.

Add '0.04591836735' to each side of the equation.
0.4285714286a + 0.04591836735 + a2 = -1.428571429 + 0.04591836735

Reorder the terms:
0.04591836735 + 0.4285714286a + a2 = -1.428571429 + 0.04591836735

Combine like terms: -1.428571429 + 0.04591836735 = -1.38265306165
0.04591836735 + 0.4285714286a + a2 = -1.38265306165

Factor a perfect square on the left side:
(a + 0.2142857143)(a + 0.2142857143) = -1.38265306165

Can't calculate square root of the right side.

The solution to this equation could not be determined.