12a-(4-4b)-9=

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Solution for 12a-(4-4b)-9= equation:


Simplifying
12a + -1(4 + -4b) + -9 = 0
12a + (4 * -1 + -4b * -1) + -9 = 0
12a + (-4 + 4b) + -9 = 0

Reorder the terms:
-4 + -9 + 12a + 4b = 0

Combine like terms: -4 + -9 = -13
-13 + 12a + 4b = 0

Solving
-13 + 12a + 4b = 0

Solving for variable 'a'.

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

Add '13' to each side of the equation.
-13 + 12a + 13 + 4b = 0 + 13

Reorder the terms:
-13 + 13 + 12a + 4b = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 12a + 4b = 0 + 13
12a + 4b = 0 + 13

Combine like terms: 0 + 13 = 13
12a + 4b = 13

Add '-4b' to each side of the equation.
12a + 4b + -4b = 13 + -4b

Combine like terms: 4b + -4b = 0
12a + 0 = 13 + -4b
12a = 13 + -4b

Divide each side by '12'.
a = 1.083333333 + -0.3333333333b

Simplifying
a = 1.083333333 + -0.3333333333b

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