28+a=39

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Solution for 28+a=39 equation:


Simplifying
28 + a = 39

Solving
28 + a = 39

Solving for variable 'a'.

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

Add '-28' to each side of the equation.
28 + -28 + a = 39 + -28

Combine like terms: 28 + -28 = 0
0 + a = 39 + -28
a = 39 + -28

Combine like terms: 39 + -28 = 11
a = 11

Simplifying
a = 11

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