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

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


Simplifying
2a + 5(a + 3) + 9 = 0

Reorder the terms:
2a + 5(3 + a) + 9 = 0
2a + (3 * 5 + a * 5) + 9 = 0
2a + (15 + 5a) + 9 = 0

Reorder the terms:
15 + 9 + 2a + 5a = 0

Combine like terms: 15 + 9 = 24
24 + 2a + 5a = 0

Combine like terms: 2a + 5a = 7a
24 + 7a = 0

Solving
24 + 7a = 0

Solving for variable 'a'.

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

Add '-24' to each side of the equation.
24 + -24 + 7a = 0 + -24

Combine like terms: 24 + -24 = 0
0 + 7a = 0 + -24
7a = 0 + -24

Combine like terms: 0 + -24 = -24
7a = -24

Divide each side by '7'.
a = -3.428571429

Simplifying
a = -3.428571429

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