2(d+6)-4d=-20

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Solution for 2(d+6)-4d=-20 equation:


Simplifying
2(d + 6) + -4d = -20

Reorder the terms:
2(6 + d) + -4d = -20
(6 * 2 + d * 2) + -4d = -20
(12 + 2d) + -4d = -20

Combine like terms: 2d + -4d = -2d
12 + -2d = -20

Solving
12 + -2d = -20

Solving for variable 'd'.

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

Add '-12' to each side of the equation.
12 + -12 + -2d = -20 + -12

Combine like terms: 12 + -12 = 0
0 + -2d = -20 + -12
-2d = -20 + -12

Combine like terms: -20 + -12 = -32
-2d = -32

Divide each side by '-2'.
d = 16

Simplifying
d = 16

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