9a-20+6a-5=180

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Solution for 9a-20+6a-5=180 equation: 


Simplifying
9a + -20 + 6a + -5 = 180

Reorder the terms:
-20 + -5 + 9a + 6a = 180

Combine like terms: -20 + -5 = -25
-25 + 9a + 6a = 180

Combine like terms: 9a + 6a = 15a
-25 + 15a = 180

Solving
-25 + 15a = 180

Solving for variable 'a'.

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

Add '25' to each side of the equation.
-25 + 25 + 15a = 180 + 25

Combine like terms: -25 + 25 = 0
0 + 15a = 180 + 25
15a = 180 + 25

Combine like terms: 180 + 25 = 205
15a = 205

Divide each side by '15'.
a = 13.66666667

Simplifying
a = 13.66666667

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