d-3=0.2d+4.2

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Solution for d-3=0.2d+4.2 equation:


Simplifying
d + -3 = 0.2d + 4.2

Reorder the terms:
-3 + d = 0.2d + 4.2

Reorder the terms:
-3 + d = 4.2 + 0.2d

Solving
-3 + d = 4.2 + 0.2d

Solving for variable 'd'.

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

Add '-0.2d' to each side of the equation.
-3 + d + -0.2d = 4.2 + 0.2d + -0.2d

Combine like terms: d + -0.2d = 0.8d
-3 + 0.8d = 4.2 + 0.2d + -0.2d

Combine like terms: 0.2d + -0.2d = 0.0
-3 + 0.8d = 4.2 + 0.0
-3 + 0.8d = 4.2

Add '3' to each side of the equation.
-3 + 3 + 0.8d = 4.2 + 3

Combine like terms: -3 + 3 = 0
0 + 0.8d = 4.2 + 3
0.8d = 4.2 + 3

Combine like terms: 4.2 + 3 = 7.2
0.8d = 7.2

Divide each side by '0.8'.
d = 9

Simplifying
d = 9

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