7d-(4d+3)(-d)=

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Solution for 7d-(4d+3)(-d)= equation:


Simplifying
7d + -1(4d + 3)(-1d) = 0

Reorder the terms:
7d + -1(3 + 4d)(-1d) = 0

Remove parenthesis around (-1d)
7d + -1(3 + 4d) * -1d = 0

Reorder the terms for easier multiplication:
7d + -1 * -1d(3 + 4d) = 0

Multiply -1 * -1
7d + 1d(3 + 4d) = 0
7d + (3 * 1d + 4d * 1d) = 0
7d + (3d + 4d2) = 0

Combine like terms: 7d + 3d = 10d
10d + 4d2 = 0

Solving
10d + 4d2 = 0

Solving for variable 'd'.

Factor out the Greatest Common Factor (GCF), '2d'.
2d(5 + 2d) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'd' equal to zero and attempt to solve: Simplifying d = 0 Solving d = 0 Move all terms containing d to the left, all other terms to the right. Simplifying d = 0

Subproblem 2

Set the factor '(5 + 2d)' equal to zero and attempt to solve: Simplifying 5 + 2d = 0 Solving 5 + 2d = 0 Move all terms containing d to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 2d = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 2d = 0 + -5 2d = 0 + -5 Combine like terms: 0 + -5 = -5 2d = -5 Divide each side by '2'. d = -2.5 Simplifying d = -2.5

Solution

d = {0, -2.5}

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