3a+7b+2c-a-2b=

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Solution for 3a+7b+2c-a-2b= equation:


Simplifying
3a + 7b + 2c + -1a + -2b = 0

Reorder the terms:
3a + -1a + 7b + -2b + 2c = 0

Combine like terms: 3a + -1a = 2a
2a + 7b + -2b + 2c = 0

Combine like terms: 7b + -2b = 5b
2a + 5b + 2c = 0

Solving
2a + 5b + 2c = 0

Solving for variable 'a'.

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

Add '-5b' to each side of the equation.
2a + 5b + -5b + 2c = 0 + -5b

Combine like terms: 5b + -5b = 0
2a + 0 + 2c = 0 + -5b
2a + 2c = 0 + -5b
Remove the zero:
2a + 2c = -5b

Add '-2c' to each side of the equation.
2a + 2c + -2c = -5b + -2c

Combine like terms: 2c + -2c = 0
2a + 0 = -5b + -2c
2a = -5b + -2c

Divide each side by '2'.
a = -2.5b + -1c

Simplifying
a = -2.5b + -1c

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