81-(a-3)=

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Solution for 81-(a-3)= equation:


Simplifying
81 + -1(a + -3) = 0

Reorder the terms:
81 + -1(-3 + a) = 0
81 + (-3 * -1 + a * -1) = 0
81 + (3 + -1a) = 0

Combine like terms: 81 + 3 = 84
84 + -1a = 0

Solving
84 + -1a = 0

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 + -1a = 0 + -84

Combine like terms: 84 + -84 = 0
0 + -1a = 0 + -84
-1a = 0 + -84

Combine like terms: 0 + -84 = -84
-1a = -84

Divide each side by '-1'.
a = 84

Simplifying
a = 84

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