4a-2(d+9)=6

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Solution for 4a-2(d+9)=6 equation:


Simplifying
4a + -2(d + 9) = 6

Reorder the terms:
4a + -2(9 + d) = 6
4a + (9 * -2 + d * -2) = 6
4a + (-18 + -2d) = 6

Reorder the terms:
-18 + 4a + -2d = 6

Solving
-18 + 4a + -2d = 6

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 + 4a + 18 + -2d = 6 + 18

Reorder the terms:
-18 + 18 + 4a + -2d = 6 + 18

Combine like terms: -18 + 18 = 0
0 + 4a + -2d = 6 + 18
4a + -2d = 6 + 18

Combine like terms: 6 + 18 = 24
4a + -2d = 24

Add '2d' to each side of the equation.
4a + -2d + 2d = 24 + 2d

Combine like terms: -2d + 2d = 0
4a + 0 = 24 + 2d
4a = 24 + 2d

Divide each side by '4'.
a = 6 + 0.5d

Simplifying
a = 6 + 0.5d

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