9a-15=75

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Solution for 9a-15=75 equation: 


Simplifying
9a + -15 = 75

Reorder the terms:
-15 + 9a = 75

Solving
-15 + 9a = 75

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 = 75 + 15

Combine like terms: -15 + 15 = 0
0 + 9a = 75 + 15
9a = 75 + 15

Combine like terms: 75 + 15 = 90
9a = 90

Divide each side by '9'.
a = 10

Simplifying
a = 10

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