a+(a+16)=56

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Solution for a+(a+16)=56 equation: 


Simplifying
a + (a + 16) = 56

Reorder the terms:
a + (16 + a) = 56

Remove parenthesis around (16 + a)
a + 16 + a = 56

Reorder the terms:
16 + a + a = 56

Combine like terms: a + a = 2a
16 + 2a = 56

Solving
16 + 2a = 56

Solving for variable 'a'.

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

Add '-16' to each side of the equation.
16 + -16 + 2a = 56 + -16

Combine like terms: 16 + -16 = 0
0 + 2a = 56 + -16
2a = 56 + -16

Combine like terms: 56 + -16 = 40
2a = 40

Divide each side by '2'.
a = 20

Simplifying
a = 20

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