81(a+2)=3(3a-1)

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Solution for 81(a+2)=3(3a-1) equation:


Simplifying
81(a + 2) = 3(3a + -1)

Reorder the terms:
81(2 + a) = 3(3a + -1)
(2 * 81 + a * 81) = 3(3a + -1)
(162 + 81a) = 3(3a + -1)

Reorder the terms:
162 + 81a = 3(-1 + 3a)
162 + 81a = (-1 * 3 + 3a * 3)
162 + 81a = (-3 + 9a)

Solving
162 + 81a = -3 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
162 + 81a + -9a = -3 + 9a + -9a

Combine like terms: 81a + -9a = 72a
162 + 72a = -3 + 9a + -9a

Combine like terms: 9a + -9a = 0
162 + 72a = -3 + 0
162 + 72a = -3

Add '-162' to each side of the equation.
162 + -162 + 72a = -3 + -162

Combine like terms: 162 + -162 = 0
0 + 72a = -3 + -162
72a = -3 + -162

Combine like terms: -3 + -162 = -165
72a = -165

Divide each side by '72'.
a = -2.291666667

Simplifying
a = -2.291666667

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