7d+d-4d-7=5

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Solution for 7d+d-4d-7=5 equation:


Simplifying
7d + d + -4d + -7 = 5

Reorder the terms:
-7 + 7d + d + -4d = 5

Combine like terms: 7d + d = 8d
-7 + 8d + -4d = 5

Combine like terms: 8d + -4d = 4d
-7 + 4d = 5

Solving
-7 + 4d = 5

Solving for variable 'd'.

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

Add '7' to each side of the equation.
-7 + 7 + 4d = 5 + 7

Combine like terms: -7 + 7 = 0
0 + 4d = 5 + 7
4d = 5 + 7

Combine like terms: 5 + 7 = 12
4d = 12

Divide each side by '4'.
d = 3

Simplifying
d = 3

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