A-13=20

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Solution for A-13=20 equation: 


Simplifying
A + -13 = 20

Reorder the terms:
-13 + A = 20

Solving
-13 + A = 20

Solving for variable 'A'.

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

Add '13' to each side of the equation.
-13 + 13 + A = 20 + 13

Combine like terms: -13 + 13 = 0
0 + A = 20 + 13
A = 20 + 13

Combine like terms: 20 + 13 = 33
A = 33

Simplifying
A = 33

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