8a-3(2a+5)=9

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Solution for 8a-3(2a+5)=9 equation:


Simplifying
8a + -3(2a + 5) = 9

Reorder the terms:
8a + -3(5 + 2a) = 9
8a + (5 * -3 + 2a * -3) = 9
8a + (-15 + -6a) = 9

Reorder the terms:
-15 + 8a + -6a = 9

Combine like terms: 8a + -6a = 2a
-15 + 2a = 9

Solving
-15 + 2a = 9

Solving for variable 'a'.

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

Add '15' to each side of the equation.
-15 + 15 + 2a = 9 + 15

Combine like terms: -15 + 15 = 0
0 + 2a = 9 + 15
2a = 9 + 15

Combine like terms: 9 + 15 = 24
2a = 24

Divide each side by '2'.
a = 12

Simplifying
a = 12

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