8-3(4d+9)+(4+d)=-9

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Solution for 8-3(4d+9)+(4+d)=-9 equation:


Simplifying
8 + -3(4d + 9) + (4 + d) = -9

Reorder the terms:
8 + -3(9 + 4d) + (4 + d) = -9
8 + (9 * -3 + 4d * -3) + (4 + d) = -9
8 + (-27 + -12d) + (4 + d) = -9

Remove parenthesis around (4 + d)
8 + -27 + -12d + 4 + d = -9

Reorder the terms:
8 + -27 + 4 + -12d + d = -9

Combine like terms: 8 + -27 = -19
-19 + 4 + -12d + d = -9

Combine like terms: -19 + 4 = -15
-15 + -12d + d = -9

Combine like terms: -12d + d = -11d
-15 + -11d = -9

Solving
-15 + -11d = -9

Solving for variable 'd'.

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

Add '15' to each side of the equation.
-15 + 15 + -11d = -9 + 15

Combine like terms: -15 + 15 = 0
0 + -11d = -9 + 15
-11d = -9 + 15

Combine like terms: -9 + 15 = 6
-11d = 6

Divide each side by '-11'.
d = -0.5454545455

Simplifying
d = -0.5454545455

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