A+7=20

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Solution for A+7=20 equation: 


Simplifying
A + 7 = 20

Reorder the terms:
7 + A = 20

Solving
7 + A = 20

Solving for variable 'A'.

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

Add '-7' to each side of the equation.
7 + -7 + A = 20 + -7

Combine like terms: 7 + -7 = 0
0 + A = 20 + -7
A = 20 + -7

Combine like terms: 20 + -7 = 13
A = 13

Simplifying
A = 13

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