-8d-7d+13d+(-20)=-10

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Solution for -8d-7d+13d+(-20)=-10 equation:


Simplifying
-8d + -7d + 13d + (-20) = -10
-8d + -7d + 13d + -20 = -10

Reorder the terms:
-20 + -8d + -7d + 13d = -10

Combine like terms: -8d + -7d = -15d
-20 + -15d + 13d = -10

Combine like terms: -15d + 13d = -2d
-20 + -2d = -10

Solving
-20 + -2d = -10

Solving for variable 'd'.

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

Add '20' to each side of the equation.
-20 + 20 + -2d = -10 + 20

Combine like terms: -20 + 20 = 0
0 + -2d = -10 + 20
-2d = -10 + 20

Combine like terms: -10 + 20 = 10
-2d = 10

Divide each side by '-2'.
d = -5

Simplifying
d = -5

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