20=15.75+3.2d

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Solution for 20=15.75+3.2d equation:


Simplifying
20 = 15.75 + 3.2d

Solving
20 = 15.75 + 3.2d

Solving for variable 'd'.

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

Add '-3.2d' to each side of the equation.
20 + -3.2d = 15.75 + 3.2d + -3.2d

Combine like terms: 3.2d + -3.2d = 0.0
20 + -3.2d = 15.75 + 0.0
20 + -3.2d = 15.75

Add '-20' to each side of the equation.
20 + -20 + -3.2d = 15.75 + -20

Combine like terms: 20 + -20 = 0
0 + -3.2d = 15.75 + -20
-3.2d = 15.75 + -20

Combine like terms: 15.75 + -20 = -4.25
-3.2d = -4.25

Divide each side by '-3.2'.
d = 1.328125

Simplifying
d = 1.328125

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