-8a+6(a+7)=0

Solution for -8a+6(a+7)=0 equation:

Simplifying
-8a + 6(a + 7) = 0

Reorder the terms:
-8a + 6(7 + a) = 0
-8a + (7 * 6 + a * 6) = 0
-8a + (42 + 6a) = 0

Reorder the terms:
42 + -8a + 6a = 0

Combine like terms: -8a + 6a = -2a
42 + -2a = 0

Solving
42 + -2a = 0

Solving for variable 'a'.

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

Add '-42' to each side of the equation.
42 + -42 + -2a = 0 + -42

Combine like terms: 42 + -42 = 0
0 + -2a = 0 + -42
-2a = 0 + -42

Combine like terms: 0 + -42 = -42
-2a = -42

Divide each side by '-2'.
a = 21

Simplifying
a = 21