7(6-2a)+5a=-3

Solution for 7(6-2a)+5a=-3 equation:

Simplifying
7(6 + -2a) + 5a = -3
(6 * 7 + -2a * 7) + 5a = -3
(42 + -14a) + 5a = -3

Combine like terms: -14a + 5a = -9a
42 + -9a = -3

Solving
42 + -9a = -3

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 + -9a = -3 + -42

Combine like terms: 42 + -42 = 0
0 + -9a = -3 + -42
-9a = -3 + -42

Combine like terms: -3 + -42 = -45
-9a = -45

Divide each side by '-9'.
a = 5

Simplifying
a = 5