-28=a+13

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Solution for -28=a+13 equation:


Simplifying
-28 = a + 13

Reorder the terms:
-28 = 13 + a

Solving
-28 = 13 + 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 = 13 + a + -1a

Combine like terms: a + -1a = 0
-28 + -1a = 13 + 0
-28 + -1a = 13

Add '28' to each side of the equation.
-28 + 28 + -1a = 13 + 28

Combine like terms: -28 + 28 = 0
0 + -1a = 13 + 28
-1a = 13 + 28

Combine like terms: 13 + 28 = 41
-1a = 41

Divide each side by '-1'.
a = -41

Simplifying
a = -41

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