A+3+4=12

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Solution for A+3+4=12 equation: 


Simplifying
A + 3 + 4 = 12

Reorder the terms:
3 + 4 + A = 12

Combine like terms: 3 + 4 = 7
7 + A = 12

Solving
7 + A = 12

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 = 12 + -7

Combine like terms: 7 + -7 = 0
0 + A = 12 + -7
A = 12 + -7

Combine like terms: 12 + -7 = 5
A = 5

Simplifying
A = 5

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