a+2b+9-(3a-2b-4c)=

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Solution for a+2b+9-(3a-2b-4c)= equation:


Simplifying
a + 2b + 9 + -1(3a + -2b + -4c) = 0
a + 2b + 9 + (3a * -1 + -2b * -1 + -4c * -1) = 0
a + 2b + 9 + (-3a + 2b + 4c) = 0

Reorder the terms:
9 + a + -3a + 2b + 2b + 4c = 0

Combine like terms: a + -3a = -2a
9 + -2a + 2b + 2b + 4c = 0

Combine like terms: 2b + 2b = 4b
9 + -2a + 4b + 4c = 0

Solving
9 + -2a + 4b + 4c = 0

Solving for variable 'a'.

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

Add '-9' to each side of the equation.
9 + -2a + 4b + -9 + 4c = 0 + -9

Reorder the terms:
9 + -9 + -2a + 4b + 4c = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -2a + 4b + 4c = 0 + -9
-2a + 4b + 4c = 0 + -9

Combine like terms: 0 + -9 = -9
-2a + 4b + 4c = -9

Add '-4b' to each side of the equation.
-2a + 4b + -4b + 4c = -9 + -4b

Combine like terms: 4b + -4b = 0
-2a + 0 + 4c = -9 + -4b
-2a + 4c = -9 + -4b

Add '-4c' to each side of the equation.
-2a + 4c + -4c = -9 + -4b + -4c

Combine like terms: 4c + -4c = 0
-2a + 0 = -9 + -4b + -4c
-2a = -9 + -4b + -4c

Divide each side by '-2'.
a = 4.5 + 2b + 2c

Simplifying
a = 4.5 + 2b + 2c

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