9(a+7)=81.9

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Solution for 9(a+7)=81.9 equation: 


Simplifying
9(a + 7) = 81.9

Reorder the terms:
9(7 + a) = 81.9
(7 * 9 + a * 9) = 81.9
(63 + 9a) = 81.9

Solving
63 + 9a = 81.9

Solving for variable 'a'.

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

Add '-63' to each side of the equation.
63 + -63 + 9a = 81.9 + -63

Combine like terms: 63 + -63 = 0
0 + 9a = 81.9 + -63
9a = 81.9 + -63

Combine like terms: 81.9 + -63 = 18.9
9a = 18.9

Divide each side by '9'.
a = 2.1

Simplifying
a = 2.1

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