-(a-3b+x-y)=

Solution for -(a-3b+x-y)= equation:

Simplifying
-1(a + -3b + x + -1y) = 0
(a * -1 + -3b * -1 + x * -1 + -1y * -1) = 0
(-1a + 3b + -1x + 1y) = 0

Solving
-1a + 3b + -1x + 1y = 0

Solving for variable 'a'.

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

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

Reorder the terms:
-1a + 3b + -3b + -1x + 1y = 0 + -3b

Combine like terms: 3b + -3b = 0
-1a + 0 + -1x + 1y = 0 + -3b
-1a + -1x + 1y = 0 + -3b
Remove the zero:
-1a + -1x + 1y = -3b

Add 'x' to each side of the equation.
-1a + -1x + x + 1y = -3b + x

Combine like terms: -1x + x = 0
-1a + 0 + 1y = -3b + x
-1a + 1y = -3b + x

Add '-1y' to each side of the equation.
-1a + 1y + -1y = -3b + x + -1y

Combine like terms: 1y + -1y = 0
-1a + 0 = -3b + x + -1y
-1a = -3b + x + -1y

Divide each side by '-1'.
a = 3b + -1x + y

Simplifying
a = 3b + -1x + y