3b+2a-c=18

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Solution for 3b+2a-c=18 equation:


Simplifying
3b + 2a + -1c = 18

Reorder the terms:
2a + 3b + -1c = 18

Solving
2a + 3b + -1c = 18

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.
2a + 3b + -3b + -1c = 18 + -3b

Combine like terms: 3b + -3b = 0
2a + 0 + -1c = 18 + -3b
2a + -1c = 18 + -3b

Add 'c' to each side of the equation.
2a + -1c + c = 18 + -3b + c

Combine like terms: -1c + c = 0
2a + 0 = 18 + -3b + c
2a = 18 + -3b + c

Divide each side by '2'.
a = 9 + -1.5b + 0.5c

Simplifying
a = 9 + -1.5b + 0.5c

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