9a+15=3a+39

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Solution for 9a+15=3a+39 equation:


Simplifying
9a + 15 = 3a + 39

Reorder the terms:
15 + 9a = 3a + 39

Reorder the terms:
15 + 9a = 39 + 3a

Solving
15 + 9a = 39 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
15 + 9a + -3a = 39 + 3a + -3a

Combine like terms: 9a + -3a = 6a
15 + 6a = 39 + 3a + -3a

Combine like terms: 3a + -3a = 0
15 + 6a = 39 + 0
15 + 6a = 39

Add '-15' to each side of the equation.
15 + -15 + 6a = 39 + -15

Combine like terms: 15 + -15 = 0
0 + 6a = 39 + -15
6a = 39 + -15

Combine like terms: 39 + -15 = 24
6a = 24

Divide each side by '6'.
a = 4

Simplifying
a = 4

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