8d-(d-1)=8

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


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

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

Reorder the terms:
1 + 8d + -1d = 8

Combine like terms: 8d + -1d = 7d
1 + 7d = 8

Solving
1 + 7d = 8

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 + 7d = 8 + -1

Combine like terms: 1 + -1 = 0
0 + 7d = 8 + -1
7d = 8 + -1

Combine like terms: 8 + -1 = 7
7d = 7

Divide each side by '7'.
d = 1

Simplifying
d = 1

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