6.5d+7(-1.3d-3)=

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Solution for 6.5d+7(-1.3d-3)= equation:


Simplifying
6.5d + 7(-1.3d + -3) = 0

Reorder the terms:
6.5d + 7(-3 + -1.3d) = 0
6.5d + (-3 * 7 + -1.3d * 7) = 0
6.5d + (-21 + -9.1d) = 0

Reorder the terms:
-21 + 6.5d + -9.1d = 0

Combine like terms: 6.5d + -9.1d = -2.6d
-21 + -2.6d = 0

Solving
-21 + -2.6d = 0

Solving for variable 'd'.

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

Add '21' to each side of the equation.
-21 + 21 + -2.6d = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -2.6d = 0 + 21
-2.6d = 0 + 21

Combine like terms: 0 + 21 = 21
-2.6d = 21

Divide each side by '-2.6'.
d = -8.076923077

Simplifying
d = -8.076923077

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