-9=7-4d

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Solution for -9=7-4d equation:


Simplifying
-9 = 7 + -4d

Solving
-9 = 7 + -4d

Solving for variable 'd'.

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

Add '4d' to each side of the equation.
-9 + 4d = 7 + -4d + 4d

Combine like terms: -4d + 4d = 0
-9 + 4d = 7 + 0
-9 + 4d = 7

Add '9' to each side of the equation.
-9 + 9 + 4d = 7 + 9

Combine like terms: -9 + 9 = 0
0 + 4d = 7 + 9
4d = 7 + 9

Combine like terms: 7 + 9 = 16
4d = 16

Divide each side by '4'.
d = 4

Simplifying
d = 4

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