9(a-1)=3(a+5)+3a

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Solution for 9(a-1)=3(a+5)+3a equation:


Simplifying
9(a + -1) = 3(a + 5) + 3a

Reorder the terms:
9(-1 + a) = 3(a + 5) + 3a
(-1 * 9 + a * 9) = 3(a + 5) + 3a
(-9 + 9a) = 3(a + 5) + 3a

Reorder the terms:
-9 + 9a = 3(5 + a) + 3a
-9 + 9a = (5 * 3 + a * 3) + 3a
-9 + 9a = (15 + 3a) + 3a

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

Solving
-9 + 9a = 15 + 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.
-9 + 9a + -6a = 15 + 6a + -6a

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

Combine like terms: 6a + -6a = 0
-9 + 3a = 15 + 0
-9 + 3a = 15

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

Combine like terms: -9 + 9 = 0
0 + 3a = 15 + 9
3a = 15 + 9

Combine like terms: 15 + 9 = 24
3a = 24

Divide each side by '3'.
a = 8

Simplifying
a = 8

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