4a-5(a+1)=

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

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

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

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

Combine like terms: 4a + -5a = -1a
-5 + -1a = 0

Solving
-5 + -1a = 0

Solving for variable 'a'.

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

Add '5' to each side of the equation.
-5 + 5 + -1a = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -1a = 0 + 5
-1a = 0 + 5

Combine like terms: 0 + 5 = 5
-1a = 5

Divide each side by '-1'.
a = -5

Simplifying
a = -5