-5(a-2)-4(a+1)=

Solution for -5(a-2)-4(a+1)= equation:

Simplifying
-5(a + -2) + -4(a + 1) = 0

Reorder the terms:
-5(-2 + a) + -4(a + 1) = 0
(-2 * -5 + a * -5) + -4(a + 1) = 0
(10 + -5a) + -4(a + 1) = 0

Reorder the terms:
10 + -5a + -4(1 + a) = 0
10 + -5a + (1 * -4 + a * -4) = 0
10 + -5a + (-4 + -4a) = 0

Reorder the terms:
10 + -4 + -5a + -4a = 0

Combine like terms: 10 + -4 = 6
6 + -5a + -4a = 0

Combine like terms: -5a + -4a = -9a
6 + -9a = 0

Solving
6 + -9a = 0

Solving for variable 'a'.

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

Add '-6' to each side of the equation.
6 + -6 + -9a = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -9a = 0 + -6
-9a = 0 + -6

Combine like terms: 0 + -6 = -6
-9a = -6

Divide each side by '-9'.
a = 0.6666666667

Simplifying
a = 0.6666666667