4(5d+7)=128

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Solution for 4(5d+7)=128 equation: 


Simplifying
4(5d + 7) = 128

Reorder the terms:
4(7 + 5d) = 128
(7 * 4 + 5d * 4) = 128
(28 + 20d) = 128

Solving
28 + 20d = 128

Solving for variable 'd'.

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

Add '-28' to each side of the equation.
28 + -28 + 20d = 128 + -28

Combine like terms: 28 + -28 = 0
0 + 20d = 128 + -28
20d = 128 + -28

Combine like terms: 128 + -28 = 100
20d = 100

Divide each side by '20'.
d = 5

Simplifying
d = 5

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