(3a+1)-(4+2a)=

Solution for (3a+1)-(4+2a)= equation:

Simplifying
(3a + 1) + -1(4 + 2a) = 0

Reorder the terms:
(1 + 3a) + -1(4 + 2a) = 0

Remove parenthesis around (1 + 3a)
1 + 3a + -1(4 + 2a) = 0
1 + 3a + (4 * -1 + 2a * -1) = 0
1 + 3a + (-4 + -2a) = 0

Reorder the terms:
1 + -4 + 3a + -2a = 0

Combine like terms: 1 + -4 = -3
-3 + 3a + -2a = 0

Combine like terms: 3a + -2a = 1a
-3 + 1a = 0

Solving
-3 + 1a = 0

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + 3 + 1a = 0 + 3

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

Combine like terms: 0 + 3 = 3
1a = 3

Divide each side by '1'.
a = 3

Simplifying
a = 3