28=27+a

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Solution for 28=27+a equation:


Simplifying
28 = 27 + a

Solving
28 = 27 + 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.
28 + -1a = 27 + a + -1a

Combine like terms: a + -1a = 0
28 + -1a = 27 + 0
28 + -1a = 27

Add '-28' to each side of the equation.
28 + -28 + -1a = 27 + -28

Combine like terms: 28 + -28 = 0
0 + -1a = 27 + -28
-1a = 27 + -28

Combine like terms: 27 + -28 = -1
-1a = -1

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

Simplifying
a = 1

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