0.8+0.3d=5

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Solution for 0.8+0.3d=5 equation: 


Simplifying
0.8 + 0.3d = 5

Solving
0.8 + 0.3d = 5

Solving for variable 'd'.

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

Add '-0.8' to each side of the equation.
0.8 + -0.8 + 0.3d = 5 + -0.8

Combine like terms: 0.8 + -0.8 = 0.0
0.0 + 0.3d = 5 + -0.8
0.3d = 5 + -0.8

Combine like terms: 5 + -0.8 = 4.2
0.3d = 4.2

Divide each side by '0.3'.
d = 14

Simplifying
d = 14

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