7x+3a-a+2x=

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Solution for 7x+3a-a+2x= equation:


Simplifying
7x + 3a + -1a + 2x = 0

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

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

Combine like terms: 7x + 2x = 9x
2a + 9x = 0

Solving
2a + 9x = 0

Solving for variable 'a'.

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

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

Combine like terms: 9x + -9x = 0
2a + 0 = 0 + -9x
2a = 0 + -9x
Remove the zero:
2a = -9x

Divide each side by '2'.
a = -4.5x

Simplifying
a = -4.5x

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