19-a=30

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Solution for 19-a=30 equation: 


Simplifying
19 + -1a = 30

Solving
19 + -1a = 30

Solving for variable 'a'.

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

Add '-19' to each side of the equation.
19 + -19 + -1a = 30 + -19

Combine like terms: 19 + -19 = 0
0 + -1a = 30 + -19
-1a = 30 + -19

Combine like terms: 30 + -19 = 11
-1a = 11

Divide each side by '-1'.
a = -11

Simplifying
a = -11

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