7d=5(3+d)

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Solution for 7d=5(3+d) equation: 


Simplifying
7d = 5(3 + d)
7d = (3 * 5 + d * 5)
7d = (15 + 5d)

Solving
7d = 15 + 5d

Solving for variable 'd'.

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

Add '-5d' to each side of the equation.
7d + -5d = 15 + 5d + -5d

Combine like terms: 7d + -5d = 2d
2d = 15 + 5d + -5d

Combine like terms: 5d + -5d = 0
2d = 15 + 0
2d = 15

Divide each side by '2'.
d = 7.5

Simplifying
d = 7.5

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