18a-9=5(2a+3)

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Solution for 18a-9=5(2a+3) equation:


Simplifying
18a + -9 = 5(2a + 3)

Reorder the terms:
-9 + 18a = 5(2a + 3)

Reorder the terms:
-9 + 18a = 5(3 + 2a)
-9 + 18a = (3 * 5 + 2a * 5)
-9 + 18a = (15 + 10a)

Solving
-9 + 18a = 15 + 10a

Solving for variable 'a'.

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

Add '-10a' to each side of the equation.
-9 + 18a + -10a = 15 + 10a + -10a

Combine like terms: 18a + -10a = 8a
-9 + 8a = 15 + 10a + -10a

Combine like terms: 10a + -10a = 0
-9 + 8a = 15 + 0
-9 + 8a = 15

Add '9' to each side of the equation.
-9 + 9 + 8a = 15 + 9

Combine like terms: -9 + 9 = 0
0 + 8a = 15 + 9
8a = 15 + 9

Combine like terms: 15 + 9 = 24
8a = 24

Divide each side by '8'.
a = 3

Simplifying
a = 3

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