A+3+1=15

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Solution for A+3+1=15 equation: 


Simplifying
A + 3 + 1 = 15

Reorder the terms:
3 + 1 + A = 15

Combine like terms: 3 + 1 = 4
4 + A = 15

Solving
4 + A = 15

Solving for variable 'A'.

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

Add '-4' to each side of the equation.
4 + -4 + A = 15 + -4

Combine like terms: 4 + -4 = 0
0 + A = 15 + -4
A = 15 + -4

Combine like terms: 15 + -4 = 11
A = 11

Simplifying
A = 11

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