6+a+(a+3)+3=27

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Solution for 6+a+(a+3)+3=27 equation:


Simplifying
6 + a + (a + 3) + 3 = 27

Reorder the terms:
6 + a + (3 + a) + 3 = 27

Remove parenthesis around (3 + a)
6 + a + 3 + a + 3 = 27

Reorder the terms:
6 + 3 + 3 + a + a = 27

Combine like terms: 6 + 3 = 9
9 + 3 + a + a = 27

Combine like terms: 9 + 3 = 12
12 + a + a = 27

Combine like terms: a + a = 2a
12 + 2a = 27

Solving
12 + 2a = 27

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + 2a = 27 + -12

Combine like terms: 12 + -12 = 0
0 + 2a = 27 + -12
2a = 27 + -12

Combine like terms: 27 + -12 = 15
2a = 15

Divide each side by '2'.
a = 7.5

Simplifying
a = 7.5

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