9a+2a+84=168

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Solution for 9a+2a+84=168 equation: 


Simplifying
9a + 2a + 84 = 168

Reorder the terms:
84 + 9a + 2a = 168

Combine like terms: 9a + 2a = 11a
84 + 11a = 168

Solving
84 + 11a = 168

Solving for variable 'a'.

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

Add '-84' to each side of the equation.
84 + -84 + 11a = 168 + -84

Combine like terms: 84 + -84 = 0
0 + 11a = 168 + -84
11a = 168 + -84

Combine like terms: 168 + -84 = 84
11a = 84

Divide each side by '11'.
a = 7.636363636

Simplifying
a = 7.636363636

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