3.2=2.5(3d+5)+3(2d+5)

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Solution for 3.2=2.5(3d+5)+3(2d+5) equation:


Simplifying
3.2 = 2.5(3d + 5) + 3(2d + 5)

Reorder the terms:
3.2 = 2.5(5 + 3d) + 3(2d + 5)
3.2 = (5 * 2.5 + 3d * 2.5) + 3(2d + 5)
3.2 = (12.5 + 7.5d) + 3(2d + 5)

Reorder the terms:
3.2 = 12.5 + 7.5d + 3(5 + 2d)
3.2 = 12.5 + 7.5d + (5 * 3 + 2d * 3)
3.2 = 12.5 + 7.5d + (15 + 6d)

Reorder the terms:
3.2 = 12.5 + 15 + 7.5d + 6d

Combine like terms: 12.5 + 15 = 27.5
3.2 = 27.5 + 7.5d + 6d

Combine like terms: 7.5d + 6d = 13.5d
3.2 = 27.5 + 13.5d

Solving
3.2 = 27.5 + 13.5d

Solving for variable 'd'.

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

Add '-13.5d' to each side of the equation.
3.2 + -13.5d = 27.5 + 13.5d + -13.5d

Combine like terms: 13.5d + -13.5d = 0.0
3.2 + -13.5d = 27.5 + 0.0
3.2 + -13.5d = 27.5

Add '-3.2' to each side of the equation.
3.2 + -3.2 + -13.5d = 27.5 + -3.2

Combine like terms: 3.2 + -3.2 = 0.0
0.0 + -13.5d = 27.5 + -3.2
-13.5d = 27.5 + -3.2

Combine like terms: 27.5 + -3.2 = 24.3
-13.5d = 24.3

Divide each side by '-13.5'.
d = -1.8

Simplifying
d = -1.8

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