2(d-1)=2d+8d

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Solution for 2(d-1)=2d+8d equation:


Simplifying
2(d + -1) = 2d + 8d

Reorder the terms:
2(-1 + d) = 2d + 8d
(-1 * 2 + d * 2) = 2d + 8d
(-2 + 2d) = 2d + 8d

Combine like terms: 2d + 8d = 10d
-2 + 2d = 10d

Solving
-2 + 2d = 10d

Solving for variable 'd'.

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

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

Combine like terms: 2d + -10d = -8d
-2 + -8d = 10d + -10d

Combine like terms: 10d + -10d = 0
-2 + -8d = 0

Add '2' to each side of the equation.
-2 + 2 + -8d = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -8d = 0 + 2
-8d = 0 + 2

Combine like terms: 0 + 2 = 2
-8d = 2

Divide each side by '-8'.
d = -0.25

Simplifying
d = -0.25

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