-3a+11=-28

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Solution for -3a+11=-28 equation: 


Simplifying
-3a + 11 = -28

Reorder the terms:
11 + -3a = -28

Solving
11 + -3a = -28

Solving for variable 'a'.

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

Add '-11' to each side of the equation.
11 + -11 + -3a = -28 + -11

Combine like terms: 11 + -11 = 0
0 + -3a = -28 + -11
-3a = -28 + -11

Combine like terms: -28 + -11 = -39
-3a = -39

Divide each side by '-3'.
a = 13

Simplifying
a = 13

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