6a+3a+28=4+6a+9

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Solution for 6a+3a+28=4+6a+9 equation:


Simplifying
6a + 3a + 28 = 4 + 6a + 9

Reorder the terms:
28 + 6a + 3a = 4 + 6a + 9

Combine like terms: 6a + 3a = 9a
28 + 9a = 4 + 6a + 9

Reorder the terms:
28 + 9a = 4 + 9 + 6a

Combine like terms: 4 + 9 = 13
28 + 9a = 13 + 6a

Solving
28 + 9a = 13 + 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.
28 + 9a + -6a = 13 + 6a + -6a

Combine like terms: 9a + -6a = 3a
28 + 3a = 13 + 6a + -6a

Combine like terms: 6a + -6a = 0
28 + 3a = 13 + 0
28 + 3a = 13

Add '-28' to each side of the equation.
28 + -28 + 3a = 13 + -28

Combine like terms: 28 + -28 = 0
0 + 3a = 13 + -28
3a = 13 + -28

Combine like terms: 13 + -28 = -15
3a = -15

Divide each side by '3'.
a = -5

Simplifying
a = -5

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