x+3(2a+6)=-9

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Solution for x+3(2a+6)=-9 equation:


Simplifying
x + 3(2a + 6) = -9

Reorder the terms:
x + 3(6 + 2a) = -9
x + (6 * 3 + 2a * 3) = -9
x + (18 + 6a) = -9

Reorder the terms:
18 + 6a + x = -9

Solving
18 + 6a + x = -9

Solving for variable 'a'.

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

Add '-18' to each side of the equation.
18 + 6a + -18 + x = -9 + -18

Reorder the terms:
18 + -18 + 6a + x = -9 + -18

Combine like terms: 18 + -18 = 0
0 + 6a + x = -9 + -18
6a + x = -9 + -18

Combine like terms: -9 + -18 = -27
6a + x = -27

Add '-1x' to each side of the equation.
6a + x + -1x = -27 + -1x

Combine like terms: x + -1x = 0
6a + 0 = -27 + -1x
6a = -27 + -1x

Divide each side by '6'.
a = -4.5 + -0.1666666667x

Simplifying
a = -4.5 + -0.1666666667x

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