5a=2*(6-3a)+21

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Solution for 5a=2*(6-3a)+21 equation:


Simplifying
5a = 2(6 + -3a) + 21
5a = (6 * 2 + -3a * 2) + 21
5a = (12 + -6a) + 21

Reorder the terms:
5a = 12 + 21 + -6a

Combine like terms: 12 + 21 = 33
5a = 33 + -6a

Solving
5a = 33 + -6a

Solving for variable 'a'.

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

Add '6a' to each side of the equation.
5a + 6a = 33 + -6a + 6a

Combine like terms: 5a + 6a = 11a
11a = 33 + -6a + 6a

Combine like terms: -6a + 6a = 0
11a = 33 + 0
11a = 33

Divide each side by '11'.
a = 3

Simplifying
a = 3

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