13+2(a-6)=

Solution for 13+2(a-6)= equation:

Simplifying
13 + 2(a + -6) = 0

Reorder the terms:
13 + 2(-6 + a) = 0
13 + (-6 * 2 + a * 2) = 0
13 + (-12 + 2a) = 0

Combine like terms: 13 + -12 = 1
1 + 2a = 0

Solving
1 + 2a = 0

Solving for variable 'a'.

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

Add '-1' to each side of the equation.
1 + -1 + 2a = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 2a = 0 + -1
2a = 0 + -1

Combine like terms: 0 + -1 = -1
2a = -1

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

Simplifying
a = -0.5