13-3+2a(-a)=11

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Solution for 13-3+2a(-a)=11 equation:


Simplifying
13 + -3 + 2a(-1a) = 11

Remove parenthesis around (-1a)
13 + -3 + 2a * -1a = 11

Reorder the terms for easier multiplication:
13 + -3 + 2 * -1a * a = 11

Multiply 2 * -1
13 + -3 + -2a * a = 11

Multiply a * a
13 + -3 + -2a2 = 11

Combine like terms: 13 + -3 = 10
10 + -2a2 = 11

Solving
10 + -2a2 = 11

Solving for variable 'a'.

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

Add '-10' to each side of the equation.
10 + -10 + -2a2 = 11 + -10

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

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

Divide each side by '-2'.
a2 = -0.5

Simplifying
a2 = -0.5

Reorder the terms:
0.5 + a2 = -0.5 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.5 + a2 = 0.0

The solution to this equation could not be determined.

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