86=79+a

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Solution for 86=79+a equation:


Simplifying
86 = 79 + a

Solving
86 = 79 + 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.
86 + -1a = 79 + a + -1a

Combine like terms: a + -1a = 0
86 + -1a = 79 + 0
86 + -1a = 79

Add '-86' to each side of the equation.
86 + -86 + -1a = 79 + -86

Combine like terms: 86 + -86 = 0
0 + -1a = 79 + -86
-1a = 79 + -86

Combine like terms: 79 + -86 = -7
-1a = -7

Divide each side by '-1'.
a = 7

Simplifying
a = 7

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