(-2a+78)=(a+81)

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Solution for (-2a+78)=(a+81) equation:


Simplifying
(-2a + 78) = (a + 81)

Reorder the terms:
(78 + -2a) = (a + 81)

Remove parenthesis around (78 + -2a)
78 + -2a = (a + 81)

Reorder the terms:
78 + -2a = (81 + a)

Remove parenthesis around (81 + a)
78 + -2a = 81 + a

Solving
78 + -2a = 81 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
78 + -2a + -1a = 81 + a + -1a

Combine like terms: -2a + -1a = -3a
78 + -3a = 81 + a + -1a

Combine like terms: a + -1a = 0
78 + -3a = 81 + 0
78 + -3a = 81

Add '-78' to each side of the equation.
78 + -78 + -3a = 81 + -78

Combine like terms: 78 + -78 = 0
0 + -3a = 81 + -78
-3a = 81 + -78

Combine like terms: 81 + -78 = 3
-3a = 3

Divide each side by '-3'.
a = -1

Simplifying
a = -1

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