3a+8x-12+4x-9a+4-13+2y=

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Solution for 3a+8x-12+4x-9a+4-13+2y= equation:


Simplifying
3a + 8x + -12 + 4x + -9a + 4 + -13 + 2y = 0

Reorder the terms:
-12 + 4 + -13 + 3a + -9a + 8x + 4x + 2y = 0

Combine like terms: -12 + 4 = -8
-8 + -13 + 3a + -9a + 8x + 4x + 2y = 0

Combine like terms: -8 + -13 = -21
-21 + 3a + -9a + 8x + 4x + 2y = 0

Combine like terms: 3a + -9a = -6a
-21 + -6a + 8x + 4x + 2y = 0

Combine like terms: 8x + 4x = 12x
-21 + -6a + 12x + 2y = 0

Solving
-21 + -6a + 12x + 2y = 0

Solving for variable 'a'.

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

Add '21' to each side of the equation.
-21 + -6a + 12x + 21 + 2y = 0 + 21

Reorder the terms:
-21 + 21 + -6a + 12x + 2y = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -6a + 12x + 2y = 0 + 21
-6a + 12x + 2y = 0 + 21

Combine like terms: 0 + 21 = 21
-6a + 12x + 2y = 21

Add '-12x' to each side of the equation.
-6a + 12x + -12x + 2y = 21 + -12x

Combine like terms: 12x + -12x = 0
-6a + 0 + 2y = 21 + -12x
-6a + 2y = 21 + -12x

Add '-2y' to each side of the equation.
-6a + 2y + -2y = 21 + -12x + -2y

Combine like terms: 2y + -2y = 0
-6a + 0 = 21 + -12x + -2y
-6a = 21 + -12x + -2y

Divide each side by '-6'.
a = -3.5 + 2x + 0.3333333333y

Simplifying
a = -3.5 + 2x + 0.3333333333y

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