9a=40+a

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Solution for 9a=40+a equation: 


Simplifying
9a = 40 + a

Solving
9a = 40 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
9a + -1a = 40 + a + -1a

Combine like terms: 9a + -1a = 8a
8a = 40 + a + -1a

Combine like terms: a + -1a = 0
8a = 40 + 0
8a = 40

Divide each side by '8'.
a = 5

Simplifying
a = 5

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