-6(d-3)-9(d-9)=

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Solution for -6(d-3)-9(d-9)= equation:


Simplifying
-6(d + -3) + -9(d + -9) = 0

Reorder the terms:
-6(-3 + d) + -9(d + -9) = 0
(-3 * -6 + d * -6) + -9(d + -9) = 0
(18 + -6d) + -9(d + -9) = 0

Reorder the terms:
18 + -6d + -9(-9 + d) = 0
18 + -6d + (-9 * -9 + d * -9) = 0
18 + -6d + (81 + -9d) = 0

Reorder the terms:
18 + 81 + -6d + -9d = 0

Combine like terms: 18 + 81 = 99
99 + -6d + -9d = 0

Combine like terms: -6d + -9d = -15d
99 + -15d = 0

Solving
99 + -15d = 0

Solving for variable 'd'.

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

Add '-99' to each side of the equation.
99 + -99 + -15d = 0 + -99

Combine like terms: 99 + -99 = 0
0 + -15d = 0 + -99
-15d = 0 + -99

Combine like terms: 0 + -99 = -99
-15d = -99

Divide each side by '-15'.
d = 6.6

Simplifying
d = 6.6

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