a+2a-9=4a-4-3-a

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Solution for a+2a-9=4a-4-3-a equation: 


Simplifying
a + 2a + -9 = 4a + -4 + -3 + -1a

Reorder the terms:
-9 + a + 2a = 4a + -4 + -3 + -1a

Combine like terms: a + 2a = 3a
-9 + 3a = 4a + -4 + -3 + -1a

Reorder the terms:
-9 + 3a = -4 + -3 + 4a + -1a

Combine like terms: -4 + -3 = -7
-9 + 3a = -7 + 4a + -1a

Combine like terms: 4a + -1a = 3a
-9 + 3a = -7 + 3a

Add '-3a' to each side of the equation.
-9 + 3a + -3a = -7 + 3a + -3a

Combine like terms: 3a + -3a = 0
-9 + 0 = -7 + 3a + -3a
-9 = -7 + 3a + -3a

Combine like terms: 3a + -3a = 0
-9 = -7 + 0
-9 = -7

Solving
-9 = -7

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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