-[a+1]+[3c]a=4

Solution for -[a+1]+[3c]a=4 equation:

Simplifying
-1[a + 1] + [3c] * a = 4

Reorder the terms:
-1[1 + a] + [3c] * a = 4
[1 * -1 + a * -1] + [3c] * a = 4
[-1 + -1a] + [3c] * a = 4

Remove brackets around [3c]
-1 + -1a + 3c * a = 4

Multiply c * a
-1 + -1a + 3ac = 4

Solving
-1 + -1a + 3ac = 4

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 + -1a + 1 + 3ac = 4 + 1

Reorder the terms:
-1 + 1 + -1a + 3ac = 4 + 1

Combine like terms: -1 + 1 = 0
0 + -1a + 3ac = 4 + 1
-1a + 3ac = 4 + 1

Combine like terms: 4 + 1 = 5
-1a + 3ac = 5

Reorder the terms:
-5 + -1a + 3ac = 5 + -5

Combine like terms: 5 + -5 = 0
-5 + -1a + 3ac = 0

The solution to this equation could not be determined.