3a+7b+2c-a-4b=

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Solution for 3a+7b+2c-a-4b= equation:


Simplifying
3a + 7b + 2c + -1a + -4b = 0

Reorder the terms:
3a + -1a + 7b + -4b + 2c = 0

Combine like terms: 3a + -1a = 2a
2a + 7b + -4b + 2c = 0

Combine like terms: 7b + -4b = 3b
2a + 3b + 2c = 0

Solving
2a + 3b + 2c = 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.
2a + 3b + -3b + 2c = 0 + -3b

Combine like terms: 3b + -3b = 0
2a + 0 + 2c = 0 + -3b
2a + 2c = 0 + -3b
Remove the zero:
2a + 2c = -3b

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

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

Divide each side by '2'.
a = -1.5b + -1c

Simplifying
a = -1.5b + -1c

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