18=0.50(d+7)

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Solution for 18=0.50(d+7) equation:


Simplifying
18 = 0.50(d + 7)

Reorder the terms:
18 = 0.50(7 + d)
18 = (7 * 0.50 + d * 0.50)
18 = (3.5 + 0.50d)

Solving
18 = 3.5 + 0.50d

Solving for variable 'd'.

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

Add '-0.50d' to each side of the equation.
18 + -0.50d = 3.5 + 0.50d + -0.50d

Combine like terms: 0.50d + -0.50d = 0.00
18 + -0.50d = 3.5 + 0.00
18 + -0.50d = 3.5

Add '-18' to each side of the equation.
18 + -18 + -0.50d = 3.5 + -18

Combine like terms: 18 + -18 = 0
0 + -0.50d = 3.5 + -18
-0.50d = 3.5 + -18

Combine like terms: 3.5 + -18 = -14.5
-0.50d = -14.5

Divide each side by '-0.50'.
d = 29

Simplifying
d = 29

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