9a+15=40

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Solution for 9a+15=40 equation: 


Simplifying
9a + 15 = 40

Reorder the terms:
15 + 9a = 40

Solving
15 + 9a = 40

Solving for variable 'a'.

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

Add '-15' to each side of the equation.
15 + -15 + 9a = 40 + -15

Combine like terms: 15 + -15 = 0
0 + 9a = 40 + -15
9a = 40 + -15

Combine like terms: 40 + -15 = 25
9a = 25

Divide each side by '9'.
a = 2.777777778

Simplifying
a = 2.777777778

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