A+a+a+3=a+13

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Solution for A+a+a+3=a+13 equation: 


Simplifying
A + a + a + 3 = a + 13

Reorder the terms:
3 + A + a + a = a + 13

Combine like terms: a + a = 2a
3 + A + 2a = a + 13

Reorder the terms:
3 + A + 2a = 13 + a

Solving
3 + A + 2a = 13 + a

Solving for variable 'A'.

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

Add '-3' to each side of the equation.
3 + A + -3 + 2a = 13 + -3 + a

Reorder the terms:
3 + -3 + A + 2a = 13 + -3 + a

Combine like terms: 3 + -3 = 0
0 + A + 2a = 13 + -3 + a
A + 2a = 13 + -3 + a

Combine like terms: 13 + -3 = 10
A + 2a = 10 + a

Add '-2a' to each side of the equation.
A + 2a + -2a = 10 + a + -2a

Combine like terms: 2a + -2a = 0
A + 0 = 10 + a + -2a
A = 10 + a + -2a

Combine like terms: a + -2a = -1a
A = 10 + -1a

Simplifying
A = 10 + -1a

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