3a+6b-7a-3b+9c=

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Solution for 3a+6b-7a-3b+9c= equation:


Simplifying
3a + 6b + -7a + -3b + 9c = 0

Reorder the terms:
3a + -7a + 6b + -3b + 9c = 0

Combine like terms: 3a + -7a = -4a
-4a + 6b + -3b + 9c = 0

Combine like terms: 6b + -3b = 3b
-4a + 3b + 9c = 0

Solving
-4a + 3b + 9c = 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.
-4a + 3b + -3b + 9c = 0 + -3b

Combine like terms: 3b + -3b = 0
-4a + 0 + 9c = 0 + -3b
-4a + 9c = 0 + -3b
Remove the zero:
-4a + 9c = -3b

Add '-9c' to each side of the equation.
-4a + 9c + -9c = -3b + -9c

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

Divide each side by '-4'.
a = 0.75b + 2.25c

Simplifying
a = 0.75b + 2.25c

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