17=9+3(a+8)

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Solution for 17=9+3(a+8) equation:


Simplifying
17 = 9 + 3(a + 8)

Reorder the terms:
17 = 9 + 3(8 + a)
17 = 9 + (8 * 3 + a * 3)
17 = 9 + (24 + 3a)

Combine like terms: 9 + 24 = 33
17 = 33 + 3a

Solving
17 = 33 + 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.
17 + -3a = 33 + 3a + -3a

Combine like terms: 3a + -3a = 0
17 + -3a = 33 + 0
17 + -3a = 33

Add '-17' to each side of the equation.
17 + -17 + -3a = 33 + -17

Combine like terms: 17 + -17 = 0
0 + -3a = 33 + -17
-3a = 33 + -17

Combine like terms: 33 + -17 = 16
-3a = 16

Divide each side by '-3'.
a = -5.333333333

Simplifying
a = -5.333333333

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