9a+8a=20a

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Solution for 9a+8a=20a equation: 


Simplifying
9a + 8a = 20a

Combine like terms: 9a + 8a = 17a
17a = 20a

Solving
17a = 20a

Solving for variable 'a'.

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

Add '-20a' to each side of the equation.
17a + -20a = 20a + -20a

Combine like terms: 17a + -20a = -3a
-3a = 20a + -20a

Combine like terms: 20a + -20a = 0
-3a = 0

Divide each side by '-3'.
a = 0

Simplifying
a = 0

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