7d+4=8d-1

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Solution for 7d+4=8d-1 equation:


Simplifying
7d + 4 = 8d + -1

Reorder the terms:
4 + 7d = 8d + -1

Reorder the terms:
4 + 7d = -1 + 8d

Solving
4 + 7d = -1 + 8d

Solving for variable 'd'.

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

Add '-8d' to each side of the equation.
4 + 7d + -8d = -1 + 8d + -8d

Combine like terms: 7d + -8d = -1d
4 + -1d = -1 + 8d + -8d

Combine like terms: 8d + -8d = 0
4 + -1d = -1 + 0
4 + -1d = -1

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

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

Combine like terms: -1 + -4 = -5
-1d = -5

Divide each side by '-1'.
d = 5

Simplifying
d = 5

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