-1-(-4d)=-15

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Solution for -1-(-4d)=-15 equation:


Simplifying
-1 + -1(-4d) = -15

Remove parenthesis around (-4d)
-1 + -1 * -4d = -15

Multiply -1 * -4
-1 + 4d = -15

Solving
-1 + 4d = -15

Solving for variable 'd'.

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

Add '1' to each side of the equation.
-1 + 1 + 4d = -15 + 1

Combine like terms: -1 + 1 = 0
0 + 4d = -15 + 1
4d = -15 + 1

Combine like terms: -15 + 1 = -14
4d = -14

Divide each side by '4'.
d = -3.5

Simplifying
d = -3.5

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