=5a+4a-2a

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Solution for =5a+4a-2a equation: 


Simplifying
0 = 5a + 4a + -2a

Combine like terms: 5a + 4a = 9a
0 = 9a + -2a

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

Solving
0 = 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
0 + -7a = 7a + -7a
Remove the zero:
-7a = 7a + -7a

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

Divide each side by '-7'.
a = 0

Simplifying
a = 0

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