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

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

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

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

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

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

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

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

Solving
-1 + 4a = 0

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 + 1 + 4a = 0 + 1

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

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

Divide each side by '4'.
a = 0.25

Simplifying
a = 0.25